[25027] | 1 | <?php
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| 2 | /**
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| 3 | * JPEG metadata reader/writer
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| 4 | *
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| 5 | * @license BSD <http://www.opensource.org/licenses/bsd-license.php>
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| 6 | * @link http://github.com/sd/jpeg-php
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| 7 | * @author Sebastian Delmont <[email protected]>
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| 8 | * @author Andreas Gohr <[email protected]>
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| 9 | * @author Hakan Sandell <[email protected]>
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| 10 | * @todo Add support for Maker Notes, Extend for GIF and PNG metadata
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| 11 | */
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| 12 |
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| 13 | // Original copyright notice:
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| 14 | //
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| 15 | // Copyright (c) 2003 Sebastian Delmont <[email protected]>
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| 16 | // All rights reserved.
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| 17 | //
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| 18 | // Redistribution and use in source and binary forms, with or without
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| 19 | // modification, are permitted provided that the following conditions
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| 20 | // are met:
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| 21 | // 1. Redistributions of source code must retain the above copyright
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| 22 | // notice, this list of conditions and the following disclaimer.
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| 23 | // 2. Redistributions in binary form must reproduce the above copyright
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| 24 | // notice, this list of conditions and the following disclaimer in the
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| 25 | // documentation and/or other materials provided with the distribution.
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| 26 | // 3. Neither the name of the author nor the names of its contributors
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| 27 | // may be used to endorse or promote products derived from this software
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| 28 | // without specific prior written permission.
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| 29 | //
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| 30 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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| 31 | // IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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| 32 | // TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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| 33 | // PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| 34 | // HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 35 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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| 36 | // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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| 37 | // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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| 38 | // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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| 39 | // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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| 40 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
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| 41 |
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| 42 | class JpegMeta {
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| 43 | var $_fileName;
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| 44 | var $_fp = null;
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| 45 | var $_type = 'unknown';
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| 46 |
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| 47 | var $_markers;
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| 48 | var $_info;
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| 49 |
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| 50 |
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| 51 | /**
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| 52 | * Constructor
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| 53 | *
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| 54 | * @author Sebastian Delmont <[email protected]>
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| 55 | */
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| 56 | function JpegMeta($fileName) {
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| 57 |
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| 58 | $this->_fileName = $fileName;
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| 59 |
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| 60 | $this->_fp = null;
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| 61 | $this->_type = 'unknown';
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| 62 |
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| 63 | unset($this->_info);
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| 64 | unset($this->_markers);
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| 65 | }
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| 66 |
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| 67 | /**
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| 68 | * Returns all gathered info as multidim array
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| 69 | *
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| 70 | * @author Sebastian Delmont <[email protected]>
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| 71 | */
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| 72 | function & getRawInfo() {
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| 73 | $this->_parseAll();
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| 74 |
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| 75 | if ($this->_markers == null) {
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| 76 | return false;
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| 77 | }
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| 78 |
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| 79 | return $this->_info;
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| 80 | }
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| 81 |
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| 82 | /**
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| 83 | * Returns basic image info
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| 84 | *
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| 85 | * @author Sebastian Delmont <[email protected]>
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| 86 | */
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| 87 | function & getBasicInfo() {
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| 88 | $this->_parseAll();
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| 89 |
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| 90 | $info = array();
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| 91 |
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| 92 | if ($this->_markers == null) {
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| 93 | return false;
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| 94 | }
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| 95 |
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| 96 | $info['Name'] = $this->_info['file']['Name'];
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| 97 | if (isset($this->_info['file']['Url'])) {
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| 98 | $info['Url'] = $this->_info['file']['Url'];
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| 99 | $info['NiceSize'] = "???KB";
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| 100 | } else {
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| 101 | $info['Size'] = $this->_info['file']['Size'];
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| 102 | $info['NiceSize'] = $this->_info['file']['NiceSize'];
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| 103 | }
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| 104 |
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| 105 | if (@isset($this->_info['sof']['Format'])) {
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| 106 | $info['Format'] = $this->_info['sof']['Format'] . " JPEG";
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| 107 | } else {
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| 108 | $info['Format'] = $this->_info['sof']['Format'] . " JPEG";
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| 109 | }
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| 110 |
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| 111 | if (@isset($this->_info['sof']['ColorChannels'])) {
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| 112 | $info['ColorMode'] = ($this->_info['sof']['ColorChannels'] > 1) ? "Color" : "B&W";
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| 113 | }
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| 114 |
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| 115 | $info['Width'] = $this->getWidth();
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| 116 | $info['Height'] = $this->getHeight();
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| 117 | $info['DimStr'] = $this->getDimStr();
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| 118 |
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| 119 | $dates = $this->getDates();
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| 120 |
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| 121 | $info['DateTime'] = $dates['EarliestTime'];
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| 122 | $info['DateTimeStr'] = $dates['EarliestTimeStr'];
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| 123 |
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| 124 | $info['HasThumbnail'] = $this->hasThumbnail();
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| 125 |
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| 126 | return $info;
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| 127 | }
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| 128 |
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| 129 |
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| 130 | /**
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| 131 | * Convinience function to access nearly all available Data
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| 132 | * through one function
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| 133 | *
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| 134 | * @author Andreas Gohr <[email protected]>
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| 135 | */
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| 136 | function getField($fields) {
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| 137 | if(!is_array($fields)) $fields = array($fields);
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| 138 | $info = false;
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| 139 | foreach($fields as $field){
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| 140 | if(strtolower(substr($field,0,5)) == 'iptc.'){
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| 141 | $info = $this->getIPTCField(substr($field,5));
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| 142 | }elseif(strtolower(substr($field,0,5)) == 'exif.'){
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| 143 | $info = $this->getExifField(substr($field,5));
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| 144 | }elseif(strtolower(substr($field,0,4)) == 'xmp.'){
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| 145 | $info = $this->getXmpField(substr($field,4));
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| 146 | }elseif(strtolower(substr($field,0,5)) == 'file.'){
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| 147 | $info = $this->getFileField(substr($field,5));
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| 148 | }elseif(strtolower(substr($field,0,5)) == 'date.'){
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| 149 | $info = $this->getDateField(substr($field,5));
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| 150 | }elseif(strtolower($field) == 'simple.camera'){
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| 151 | $info = $this->getCamera();
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| 152 | }elseif(strtolower($field) == 'simple.raw'){
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| 153 | return $this->getRawInfo();
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| 154 | }elseif(strtolower($field) == 'simple.title'){
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| 155 | $info = $this->getTitle();
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| 156 | }elseif(strtolower($field) == 'simple.shutterspeed'){
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| 157 | $info = $this->getShutterSpeed();
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| 158 | }else{
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| 159 | $info = $this->getExifField($field);
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| 160 | }
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| 161 | if($info != false) break;
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| 162 | }
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| 163 |
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| 164 | if($info === false) $info = $alt;
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| 165 | if(is_array($info)){
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| 166 | if(isset($info['val'])){
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| 167 | $info = $info['val'];
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| 168 | }else{
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| 169 | $info = join(', ',$info);
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| 170 | }
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| 171 | }
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| 172 | return trim($info);
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| 173 | }
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| 174 |
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| 175 | /**
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| 176 | * Convinience function to set nearly all available Data
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| 177 | * through one function
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| 178 | *
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| 179 | * @author Andreas Gohr <[email protected]>
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| 180 | */
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| 181 | function setField($field, $value) {
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| 182 | if(strtolower(substr($field,0,5)) == 'iptc.'){
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| 183 | return $this->setIPTCField(substr($field,5),$value);
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| 184 | }elseif(strtolower(substr($field,0,5)) == 'exif.'){
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| 185 | return $this->setExifField(substr($field,5),$value);
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| 186 | }else{
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| 187 | return $this->setExifField($field,$value);
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| 188 | }
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| 189 | }
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| 190 |
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| 191 | /**
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| 192 | * Convinience function to delete nearly all available Data
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| 193 | * through one function
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| 194 | *
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| 195 | * @author Andreas Gohr <[email protected]>
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| 196 | */
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| 197 | function deleteField($field) {
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| 198 | if(strtolower(substr($field,0,5)) == 'iptc.'){
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| 199 | return $this->deleteIPTCField(substr($field,5));
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| 200 | }elseif(strtolower(substr($field,0,5)) == 'exif.'){
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| 201 | return $this->deleteExifField(substr($field,5));
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| 202 | }else{
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| 203 | return $this->deleteExifField($field);
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| 204 | }
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| 205 | }
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| 206 |
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| 207 | /**
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| 208 | * Return a date field
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| 209 | *
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| 210 | * @author Andreas Gohr <[email protected]>
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| 211 | */
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| 212 | function getDateField($field) {
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| 213 | if (!isset($this->_info['dates'])) {
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| 214 | $this->_info['dates'] = $this->getDates();
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| 215 | }
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| 216 |
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| 217 | if (isset($this->_info['dates'][$field])) {
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| 218 | return $this->_info['dates'][$field];
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| 219 | }
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| 220 |
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| 221 | return false;
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| 222 | }
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| 223 |
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| 224 | /**
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| 225 | * Return a file info field
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| 226 | *
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| 227 | * @author Andreas Gohr <[email protected]>
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| 228 | */
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| 229 | function getFileField($field) {
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| 230 | if (!isset($this->_info['file'])) {
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| 231 | $this->_parseFileInfo();
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| 232 | }
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| 233 |
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| 234 | if (isset($this->_info['file'][$field])) {
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| 235 | return $this->_info['file'][$field];
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| 236 | }
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| 237 |
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| 238 | return false;
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| 239 | }
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| 240 |
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| 241 | /**
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| 242 | * Return the camera info (Maker and Model)
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| 243 | *
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| 244 | * @author Andreas Gohr <[email protected]>
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| 245 | * @todo handle makernotes
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| 246 | */
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| 247 | function getCamera(){
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| 248 | $make = $this->getField(array('Exif.Make','Exif.TIFFMake'));
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| 249 | $model = $this->getField(array('Exif.Model','Exif.TIFFModel'));
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| 250 | $cam = trim("$make $model");
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| 251 | if(empty($cam)) return false;
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| 252 | return $cam;
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| 253 | }
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| 254 |
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| 255 | /**
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| 256 | * Return shutter speed as a ratio
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| 257 | *
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| 258 | * @author Joe Lapp <[email protected]>
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| 259 | */
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| 260 | function getShutterSpeed() {
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| 261 | if (!isset($this->_info['exif'])) {
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| 262 | $this->_parseMarkerExif();
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| 263 | }
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| 264 | if(!isset($this->_info['exif']['ExposureTime'])){
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| 265 | return '';
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| 266 | }
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| 267 |
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| 268 | $field = $this->_info['exif']['ExposureTime'];
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| 269 | if($field['den'] == 1) return $field['num'];
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| 270 | return $field['num'].'/'.$field['den'];
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| 271 | }
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| 272 |
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| 273 | /**
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| 274 | * Return an EXIF field
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| 275 | *
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| 276 | * @author Sebastian Delmont <[email protected]>
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| 277 | */
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| 278 | function getExifField($field) {
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| 279 | if (!isset($this->_info['exif'])) {
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| 280 | $this->_parseMarkerExif();
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| 281 | }
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| 282 |
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| 283 | if ($this->_markers == null) {
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| 284 | return false;
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| 285 | }
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| 286 |
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| 287 | if (isset($this->_info['exif'][$field])) {
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| 288 | return $this->_info['exif'][$field];
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| 289 | }
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| 290 |
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| 291 | return false;
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| 292 | }
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| 293 |
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| 294 | /**
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| 295 | * Return an XMP field
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| 296 | *
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| 297 | * @author Hakan Sandell <[email protected]>
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| 298 | */
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| 299 | function getXmpField($field) {
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| 300 | if (!isset($this->_info['xmp'])) {
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| 301 | $this->_parseMarkerXmp();
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| 302 | }
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| 303 |
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| 304 | if ($this->_markers == null) {
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| 305 | return false;
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| 306 | }
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| 307 |
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| 308 | if (isset($this->_info['xmp'][$field])) {
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| 309 | return $this->_info['xmp'][$field];
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| 310 | }
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| 311 |
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| 312 | return false;
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| 313 | }
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| 314 |
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| 315 | /**
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| 316 | * Return an Adobe Field
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| 317 | *
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| 318 | * @author Sebastian Delmont <[email protected]>
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| 319 | */
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| 320 | function getAdobeField($field) {
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| 321 | if (!isset($this->_info['adobe'])) {
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| 322 | $this->_parseMarkerAdobe();
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| 323 | }
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| 324 |
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| 325 | if ($this->_markers == null) {
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| 326 | return false;
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| 327 | }
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| 328 |
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| 329 | if (isset($this->_info['adobe'][$field])) {
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| 330 | return $this->_info['adobe'][$field];
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| 331 | }
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| 332 |
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| 333 | return false;
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| 334 | }
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| 335 |
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| 336 | /**
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| 337 | * Return an IPTC field
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| 338 | *
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| 339 | * @author Sebastian Delmont <[email protected]>
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| 340 | */
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| 341 | function getIPTCField($field) {
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| 342 | if (!isset($this->_info['iptc'])) {
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| 343 | $this->_parseMarkerAdobe();
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| 344 | }
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| 345 |
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| 346 | if ($this->_markers == null) {
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| 347 | return false;
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| 348 | }
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| 349 |
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| 350 | if (isset($this->_info['iptc'][$field])) {
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| 351 | return $this->_info['iptc'][$field];
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| 352 | }
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| 353 |
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| 354 | return false;
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| 355 | }
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| 356 |
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| 357 | /**
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| 358 | * Set an EXIF field
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| 359 | *
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| 360 | * @author Sebastian Delmont <[email protected]>
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| 361 | * @author Joe Lapp <[email protected]>
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| 362 | */
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| 363 | function setExifField($field, $value) {
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| 364 | if (!isset($this->_info['exif'])) {
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| 365 | $this->_parseMarkerExif();
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| 366 | }
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| 367 |
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| 368 | if ($this->_markers == null) {
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| 369 | return false;
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| 370 | }
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| 371 |
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| 372 | if ($this->_info['exif'] == false) {
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| 373 | $this->_info['exif'] = array();
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| 374 | }
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| 375 |
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| 376 | // make sure datetimes are in correct format
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| 377 | if(strlen($field) >= 8 && strtolower(substr($field, 0, 8)) == 'datetime') {
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| 378 | if(strlen($value) < 8 || $value{4} != ':' || $value{7} != ':') {
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| 379 | $value = date('Y:m:d H:i:s', strtotime($value));
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| 380 | }
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| 381 | }
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| 382 |
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| 383 | $this->_info['exif'][$field] = $value;
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| 384 |
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| 385 | return true;
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| 386 | }
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| 387 |
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| 388 | /**
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| 389 | * Set an Adobe Field
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| 390 | *
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| 391 | * @author Sebastian Delmont <[email protected]>
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| 392 | */
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| 393 | function setAdobeField($field, $value) {
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| 394 | if (!isset($this->_info['adobe'])) {
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| 395 | $this->_parseMarkerAdobe();
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| 396 | }
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| 397 |
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| 398 | if ($this->_markers == null) {
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| 399 | return false;
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| 400 | }
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| 401 |
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| 402 | if ($this->_info['adobe'] == false) {
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| 403 | $this->_info['adobe'] = array();
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| 404 | }
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| 405 |
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| 406 | $this->_info['adobe'][$field] = $value;
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| 407 |
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| 408 | return true;
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| 409 | }
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| 410 |
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| 411 | /**
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| 412 | * Calculates the multiplier needed to resize the image to the given
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| 413 | * dimensions
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| 414 | *
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| 415 | * @author Andreas Gohr <[email protected]>
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| 416 | */
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| 417 | function getResizeRatio($maxwidth,$maxheight=0){
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| 418 | if(!$maxheight) $maxheight = $maxwidth;
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| 419 |
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| 420 | $w = $this->getField('File.Width');
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| 421 | $h = $this->getField('File.Height');
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| 422 |
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| 423 | $ratio = 1;
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| 424 | if($w >= $h){
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| 425 | if($w >= $maxwidth){
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| 426 | $ratio = $maxwidth/$w;
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| 427 | }elseif($h > $maxheight){
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| 428 | $ratio = $maxheight/$h;
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| 429 | }
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| 430 | }else{
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| 431 | if($h >= $maxheight){
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| 432 | $ratio = $maxheight/$h;
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| 433 | }elseif($w > $maxwidth){
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| 434 | $ratio = $maxwidth/$w;
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| 435 | }
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| 436 | }
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| 437 | return $ratio;
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| 438 | }
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| 439 |
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| 440 |
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| 441 | /**
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| 442 | * Set an IPTC field
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| 443 | *
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| 444 | * @author Sebastian Delmont <[email protected]>
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| 445 | */
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| 446 | function setIPTCField($field, $value) {
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| 447 | if (!isset($this->_info['iptc'])) {
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| 448 | $this->_parseMarkerAdobe();
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| 449 | }
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| 450 |
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| 451 | if ($this->_markers == null) {
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| 452 | return false;
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| 453 | }
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| 454 |
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| 455 | if ($this->_info['iptc'] == false) {
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| 456 | $this->_info['iptc'] = array();
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| 457 | }
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| 458 |
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| 459 | $this->_info['iptc'][$field] = $value;
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| 460 |
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| 461 | return true;
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| 462 | }
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| 463 |
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| 464 | /**
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| 465 | * Delete an EXIF field
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| 466 | *
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| 467 | * @author Sebastian Delmont <[email protected]>
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| 468 | */
|
---|
| 469 | function deleteExifField($field) {
|
---|
| 470 | if (!isset($this->_info['exif'])) {
|
---|
| 471 | $this->_parseMarkerAdobe();
|
---|
| 472 | }
|
---|
| 473 |
|
---|
| 474 | if ($this->_markers == null) {
|
---|
| 475 | return false;
|
---|
| 476 | }
|
---|
| 477 |
|
---|
| 478 | if ($this->_info['exif'] != false) {
|
---|
| 479 | unset($this->_info['exif'][$field]);
|
---|
| 480 | }
|
---|
| 481 |
|
---|
| 482 | return true;
|
---|
| 483 | }
|
---|
| 484 |
|
---|
| 485 | /**
|
---|
| 486 | * Delete an Adobe field
|
---|
| 487 | *
|
---|
| 488 | * @author Sebastian Delmont <[email protected]>
|
---|
| 489 | */
|
---|
| 490 | function deleteAdobeField($field) {
|
---|
| 491 | if (!isset($this->_info['adobe'])) {
|
---|
| 492 | $this->_parseMarkerAdobe();
|
---|
| 493 | }
|
---|
| 494 |
|
---|
| 495 | if ($this->_markers == null) {
|
---|
| 496 | return false;
|
---|
| 497 | }
|
---|
| 498 |
|
---|
| 499 | if ($this->_info['adobe'] != false) {
|
---|
| 500 | unset($this->_info['adobe'][$field]);
|
---|
| 501 | }
|
---|
| 502 |
|
---|
| 503 | return true;
|
---|
| 504 | }
|
---|
| 505 |
|
---|
| 506 | /**
|
---|
| 507 | * Delete an IPTC field
|
---|
| 508 | *
|
---|
| 509 | * @author Sebastian Delmont <[email protected]>
|
---|
| 510 | */
|
---|
| 511 | function deleteIPTCField($field) {
|
---|
| 512 | if (!isset($this->_info['iptc'])) {
|
---|
| 513 | $this->_parseMarkerAdobe();
|
---|
| 514 | }
|
---|
| 515 |
|
---|
| 516 | if ($this->_markers == null) {
|
---|
| 517 | return false;
|
---|
| 518 | }
|
---|
| 519 |
|
---|
| 520 | if ($this->_info['iptc'] != false) {
|
---|
| 521 | unset($this->_info['iptc'][$field]);
|
---|
| 522 | }
|
---|
| 523 |
|
---|
| 524 | return true;
|
---|
| 525 | }
|
---|
| 526 |
|
---|
| 527 | /**
|
---|
| 528 | * Get the image's title, tries various fields
|
---|
| 529 | *
|
---|
| 530 | * @param int $max maximum number chars (keeps words)
|
---|
| 531 | * @author Andreas Gohr <[email protected]>
|
---|
| 532 | */
|
---|
| 533 | function getTitle($max=80){
|
---|
| 534 | $cap = '';
|
---|
| 535 |
|
---|
| 536 | // try various fields
|
---|
| 537 | $cap = $this->getField(array('Iptc.Headline',
|
---|
| 538 | 'Iptc.Caption',
|
---|
| 539 | 'Xmp.dc:title',
|
---|
| 540 | 'Exif.UserComment',
|
---|
| 541 | 'Exif.TIFFUserComment',
|
---|
| 542 | 'Exif.TIFFImageDescription',
|
---|
| 543 | 'File.Name'));
|
---|
| 544 | if (empty($cap)) return false;
|
---|
| 545 |
|
---|
| 546 | if(!$max) return $cap;
|
---|
| 547 | // Shorten to 80 chars (keeping words)
|
---|
| 548 | $new = preg_replace('/\n.+$/','',wordwrap($cap, $max));
|
---|
| 549 | if($new != $cap) $new .= '...';
|
---|
| 550 |
|
---|
| 551 | return $new;
|
---|
| 552 | }
|
---|
| 553 |
|
---|
| 554 | /**
|
---|
| 555 | * Gather various date fields
|
---|
| 556 | *
|
---|
| 557 | * @author Sebastian Delmont <[email protected]>
|
---|
| 558 | */
|
---|
| 559 | function getDates() {
|
---|
| 560 | $this->_parseAll();
|
---|
| 561 | if ($this->_markers == null) {
|
---|
| 562 | if (@isset($this->_info['file']['UnixTime'])) {
|
---|
| 563 | $dates['FileModified'] = $this->_info['file']['UnixTime'];
|
---|
| 564 | $dates['Time'] = $this->_info['file']['UnixTime'];
|
---|
| 565 | $dates['TimeSource'] = 'FileModified';
|
---|
| 566 | $dates['TimeStr'] = date("Y-m-d H:i:s", $this->_info['file']['UnixTime']);
|
---|
| 567 | $dates['EarliestTime'] = $this->_info['file']['UnixTime'];
|
---|
| 568 | $dates['EarliestTimeSource'] = 'FileModified';
|
---|
| 569 | $dates['EarliestTimeStr'] = date("Y-m-d H:i:s", $this->_info['file']['UnixTime']);
|
---|
| 570 | $dates['LatestTime'] = $this->_info['file']['UnixTime'];
|
---|
| 571 | $dates['LatestTimeSource'] = 'FileModified';
|
---|
| 572 | $dates['LatestTimeStr'] = date("Y-m-d H:i:s", $this->_info['file']['UnixTime']);
|
---|
| 573 | return $dates;
|
---|
| 574 | }
|
---|
| 575 | return false;
|
---|
| 576 | }
|
---|
| 577 |
|
---|
| 578 | $dates = array();
|
---|
| 579 |
|
---|
| 580 | $latestTime = 0;
|
---|
| 581 | $latestTimeSource = "";
|
---|
| 582 | $earliestTime = time();
|
---|
| 583 | $earliestTimeSource = "";
|
---|
| 584 |
|
---|
| 585 | if (@isset($this->_info['exif']['DateTime'])) {
|
---|
| 586 | $dates['ExifDateTime'] = $this->_info['exif']['DateTime'];
|
---|
| 587 |
|
---|
| 588 | $aux = $this->_info['exif']['DateTime'];
|
---|
| 589 | $aux{4} = "-";
|
---|
| 590 | $aux{7} = "-";
|
---|
| 591 | $t = strtotime($aux);
|
---|
| 592 |
|
---|
| 593 | if ($t && $t > $latestTime) {
|
---|
| 594 | $latestTime = $t;
|
---|
| 595 | $latestTimeSource = "ExifDateTime";
|
---|
| 596 | }
|
---|
| 597 |
|
---|
| 598 | if ($t && $t < $earliestTime) {
|
---|
| 599 | $earliestTime = $t;
|
---|
| 600 | $earliestTimeSource = "ExifDateTime";
|
---|
| 601 | }
|
---|
| 602 | }
|
---|
| 603 |
|
---|
| 604 | if (@isset($this->_info['exif']['DateTimeOriginal'])) {
|
---|
| 605 | $dates['ExifDateTimeOriginal'] = $this->_info['exif']['DateTime'];
|
---|
| 606 |
|
---|
| 607 | $aux = $this->_info['exif']['DateTimeOriginal'];
|
---|
| 608 | $aux{4} = "-";
|
---|
| 609 | $aux{7} = "-";
|
---|
| 610 | $t = strtotime($aux);
|
---|
| 611 |
|
---|
| 612 | if ($t && $t > $latestTime) {
|
---|
| 613 | $latestTime = $t;
|
---|
| 614 | $latestTimeSource = "ExifDateTimeOriginal";
|
---|
| 615 | }
|
---|
| 616 |
|
---|
| 617 | if ($t && $t < $earliestTime) {
|
---|
| 618 | $earliestTime = $t;
|
---|
| 619 | $earliestTimeSource = "ExifDateTimeOriginal";
|
---|
| 620 | }
|
---|
| 621 | }
|
---|
| 622 |
|
---|
| 623 | if (@isset($this->_info['exif']['DateTimeDigitized'])) {
|
---|
| 624 | $dates['ExifDateTimeDigitized'] = $this->_info['exif']['DateTime'];
|
---|
| 625 |
|
---|
| 626 | $aux = $this->_info['exif']['DateTimeDigitized'];
|
---|
| 627 | $aux{4} = "-";
|
---|
| 628 | $aux{7} = "-";
|
---|
| 629 | $t = strtotime($aux);
|
---|
| 630 |
|
---|
| 631 | if ($t && $t > $latestTime) {
|
---|
| 632 | $latestTime = $t;
|
---|
| 633 | $latestTimeSource = "ExifDateTimeDigitized";
|
---|
| 634 | }
|
---|
| 635 |
|
---|
| 636 | if ($t && $t < $earliestTime) {
|
---|
| 637 | $earliestTime = $t;
|
---|
| 638 | $earliestTimeSource = "ExifDateTimeDigitized";
|
---|
| 639 | }
|
---|
| 640 | }
|
---|
| 641 |
|
---|
| 642 | if (@isset($this->_info['iptc']['DateCreated'])) {
|
---|
| 643 | $dates['IPTCDateCreated'] = $this->_info['iptc']['DateCreated'];
|
---|
| 644 |
|
---|
| 645 | $aux = $this->_info['iptc']['DateCreated'];
|
---|
| 646 | $aux = substr($aux, 0, 4) . "-" . substr($aux, 4, 2) . "-" . substr($aux, 6, 2);
|
---|
| 647 | $t = strtotime($aux);
|
---|
| 648 |
|
---|
| 649 | if ($t && $t > $latestTime) {
|
---|
| 650 | $latestTime = $t;
|
---|
| 651 | $latestTimeSource = "IPTCDateCreated";
|
---|
| 652 | }
|
---|
| 653 |
|
---|
| 654 | if ($t && $t < $earliestTime) {
|
---|
| 655 | $earliestTime = $t;
|
---|
| 656 | $earliestTimeSource = "IPTCDateCreated";
|
---|
| 657 | }
|
---|
| 658 | }
|
---|
| 659 |
|
---|
| 660 | if (@isset($this->_info['file']['UnixTime'])) {
|
---|
| 661 | $dates['FileModified'] = $this->_info['file']['UnixTime'];
|
---|
| 662 |
|
---|
| 663 | $t = $this->_info['file']['UnixTime'];
|
---|
| 664 |
|
---|
| 665 | if ($t && $t > $latestTime) {
|
---|
| 666 | $latestTime = $t;
|
---|
| 667 | $latestTimeSource = "FileModified";
|
---|
| 668 | }
|
---|
| 669 |
|
---|
| 670 | if ($t && $t < $earliestTime) {
|
---|
| 671 | $earliestTime = $t;
|
---|
| 672 | $earliestTimeSource = "FileModified";
|
---|
| 673 | }
|
---|
| 674 | }
|
---|
| 675 |
|
---|
| 676 | $dates['Time'] = $earliestTime;
|
---|
| 677 | $dates['TimeSource'] = $earliestTimeSource;
|
---|
| 678 | $dates['TimeStr'] = date("Y-m-d H:i:s", $earliestTime);
|
---|
| 679 | $dates['EarliestTime'] = $earliestTime;
|
---|
| 680 | $dates['EarliestTimeSource'] = $earliestTimeSource;
|
---|
| 681 | $dates['EarliestTimeStr'] = date("Y-m-d H:i:s", $earliestTime);
|
---|
| 682 | $dates['LatestTime'] = $latestTime;
|
---|
| 683 | $dates['LatestTimeSource'] = $latestTimeSource;
|
---|
| 684 | $dates['LatestTimeStr'] = date("Y-m-d H:i:s", $latestTime);
|
---|
| 685 |
|
---|
| 686 | return $dates;
|
---|
| 687 | }
|
---|
| 688 |
|
---|
| 689 | /**
|
---|
| 690 | * Get the image width, tries various fields
|
---|
| 691 | *
|
---|
| 692 | * @author Sebastian Delmont <[email protected]>
|
---|
| 693 | */
|
---|
| 694 | function getWidth() {
|
---|
| 695 | if (!isset($this->_info['sof'])) {
|
---|
| 696 | $this->_parseMarkerSOF();
|
---|
| 697 | }
|
---|
| 698 |
|
---|
| 699 | if ($this->_markers == null) {
|
---|
| 700 | return false;
|
---|
| 701 | }
|
---|
| 702 |
|
---|
| 703 | if (isset($this->_info['sof']['ImageWidth'])) {
|
---|
| 704 | return $this->_info['sof']['ImageWidth'];
|
---|
| 705 | }
|
---|
| 706 |
|
---|
| 707 | if (!isset($this->_info['exif'])) {
|
---|
| 708 | $this->_parseMarkerExif();
|
---|
| 709 | }
|
---|
| 710 |
|
---|
| 711 | if (isset($this->_info['exif']['PixelXDimension'])) {
|
---|
| 712 | return $this->_info['exif']['PixelXDimension'];
|
---|
| 713 | }
|
---|
| 714 |
|
---|
| 715 | return false;
|
---|
| 716 | }
|
---|
| 717 |
|
---|
| 718 | /**
|
---|
| 719 | * Get the image height, tries various fields
|
---|
| 720 | *
|
---|
| 721 | * @author Sebastian Delmont <[email protected]>
|
---|
| 722 | */
|
---|
| 723 | function getHeight() {
|
---|
| 724 | if (!isset($this->_info['sof'])) {
|
---|
| 725 | $this->_parseMarkerSOF();
|
---|
| 726 | }
|
---|
| 727 |
|
---|
| 728 | if ($this->_markers == null) {
|
---|
| 729 | return false;
|
---|
| 730 | }
|
---|
| 731 |
|
---|
| 732 | if (isset($this->_info['sof']['ImageHeight'])) {
|
---|
| 733 | return $this->_info['sof']['ImageHeight'];
|
---|
| 734 | }
|
---|
| 735 |
|
---|
| 736 | if (!isset($this->_info['exif'])) {
|
---|
| 737 | $this->_parseMarkerExif();
|
---|
| 738 | }
|
---|
| 739 |
|
---|
| 740 | if (isset($this->_info['exif']['PixelYDimension'])) {
|
---|
| 741 | return $this->_info['exif']['PixelYDimension'];
|
---|
| 742 | }
|
---|
| 743 |
|
---|
| 744 | return false;
|
---|
| 745 | }
|
---|
| 746 |
|
---|
| 747 | /**
|
---|
| 748 | * Get an dimension string for use in img tag
|
---|
| 749 | *
|
---|
| 750 | * @author Sebastian Delmont <[email protected]>
|
---|
| 751 | */
|
---|
| 752 | function getDimStr() {
|
---|
| 753 | if ($this->_markers == null) {
|
---|
| 754 | return false;
|
---|
| 755 | }
|
---|
| 756 |
|
---|
| 757 | $w = $this->getWidth();
|
---|
| 758 | $h = $this->getHeight();
|
---|
| 759 |
|
---|
| 760 | return "width='" . $w . "' height='" . $h . "'";
|
---|
| 761 | }
|
---|
| 762 |
|
---|
| 763 | /**
|
---|
| 764 | * Checks for an embedded thumbnail
|
---|
| 765 | *
|
---|
| 766 | * @author Sebastian Delmont <[email protected]>
|
---|
| 767 | */
|
---|
| 768 | function hasThumbnail($which = 'any') {
|
---|
| 769 | if (($which == 'any') || ($which == 'exif')) {
|
---|
| 770 | if (!isset($this->_info['exif'])) {
|
---|
| 771 | $this->_parseMarkerExif();
|
---|
| 772 | }
|
---|
| 773 |
|
---|
| 774 | if ($this->_markers == null) {
|
---|
| 775 | return false;
|
---|
| 776 | }
|
---|
| 777 |
|
---|
| 778 | if (isset($this->_info['exif']) && is_array($this->_info['exif'])) {
|
---|
| 779 | if (isset($this->_info['exif']['JFIFThumbnail'])) {
|
---|
| 780 | return 'exif';
|
---|
| 781 | }
|
---|
| 782 | }
|
---|
| 783 | }
|
---|
| 784 |
|
---|
| 785 | if ($which == 'adobe') {
|
---|
| 786 | if (!isset($this->_info['adobe'])) {
|
---|
| 787 | $this->_parseMarkerAdobe();
|
---|
| 788 | }
|
---|
| 789 |
|
---|
| 790 | if ($this->_markers == null) {
|
---|
| 791 | return false;
|
---|
| 792 | }
|
---|
| 793 |
|
---|
| 794 | if (isset($this->_info['adobe']) && is_array($this->_info['adobe'])) {
|
---|
| 795 | if (isset($this->_info['adobe']['ThumbnailData'])) {
|
---|
| 796 | return 'exif';
|
---|
| 797 | }
|
---|
| 798 | }
|
---|
| 799 | }
|
---|
| 800 |
|
---|
| 801 | return false;
|
---|
| 802 | }
|
---|
| 803 |
|
---|
| 804 | /**
|
---|
| 805 | * Send embedded thumbnail to browser
|
---|
| 806 | *
|
---|
| 807 | * @author Sebastian Delmont <[email protected]>
|
---|
| 808 | */
|
---|
| 809 | function sendThumbnail($which = 'any') {
|
---|
| 810 | $data = null;
|
---|
| 811 |
|
---|
| 812 | if (($which == 'any') || ($which == 'exif')) {
|
---|
| 813 | if (!isset($this->_info['exif'])) {
|
---|
| 814 | $this->_parseMarkerExif();
|
---|
| 815 | }
|
---|
| 816 |
|
---|
| 817 | if ($this->_markers == null) {
|
---|
| 818 | return false;
|
---|
| 819 | }
|
---|
| 820 |
|
---|
| 821 | if (isset($this->_info['exif']) && is_array($this->_info['exif'])) {
|
---|
| 822 | if (isset($this->_info['exif']['JFIFThumbnail'])) {
|
---|
| 823 | $data =& $this->_info['exif']['JFIFThumbnail'];
|
---|
| 824 | }
|
---|
| 825 | }
|
---|
| 826 | }
|
---|
| 827 |
|
---|
| 828 | if (($which == 'adobe') || ($data == null)){
|
---|
| 829 | if (!isset($this->_info['adobe'])) {
|
---|
| 830 | $this->_parseMarkerAdobe();
|
---|
| 831 | }
|
---|
| 832 |
|
---|
| 833 | if ($this->_markers == null) {
|
---|
| 834 | return false;
|
---|
| 835 | }
|
---|
| 836 |
|
---|
| 837 | if (isset($this->_info['adobe']) && is_array($this->_info['adobe'])) {
|
---|
| 838 | if (isset($this->_info['adobe']['ThumbnailData'])) {
|
---|
| 839 | $data =& $this->_info['adobe']['ThumbnailData'];
|
---|
| 840 | }
|
---|
| 841 | }
|
---|
| 842 | }
|
---|
| 843 |
|
---|
| 844 | if ($data != null) {
|
---|
| 845 | header("Content-type: image/jpeg");
|
---|
| 846 | echo $data;
|
---|
| 847 | return true;
|
---|
| 848 | }
|
---|
| 849 |
|
---|
| 850 | return false;
|
---|
| 851 | }
|
---|
| 852 |
|
---|
| 853 | /**
|
---|
| 854 | * Save changed Metadata
|
---|
| 855 | *
|
---|
| 856 | * @author Sebastian Delmont <[email protected]>
|
---|
| 857 | * @author Andreas Gohr <[email protected]>
|
---|
| 858 | */
|
---|
| 859 | function save($fileName = "") {
|
---|
| 860 | if ($fileName == "") {
|
---|
| 861 | $tmpName = tempnam(dirname($this->_fileName),'_metatemp_');
|
---|
| 862 | $this->_writeJPEG($tmpName);
|
---|
| 863 | if (@file_exists($tmpName)) {
|
---|
| 864 | return io_rename($tmpName, $this->_fileName);
|
---|
| 865 | }
|
---|
| 866 | } else {
|
---|
| 867 | return $this->_writeJPEG($fileName);
|
---|
| 868 | }
|
---|
| 869 | return false;
|
---|
| 870 | }
|
---|
| 871 |
|
---|
| 872 | /*************************************************************/
|
---|
| 873 | /* PRIVATE FUNCTIONS (Internal Use Only!) */
|
---|
| 874 | /*************************************************************/
|
---|
| 875 |
|
---|
| 876 | /*************************************************************/
|
---|
| 877 | function _dispose() {
|
---|
| 878 | $this->_fileName = $fileName;
|
---|
| 879 |
|
---|
| 880 | $this->_fp = null;
|
---|
| 881 | $this->_type = 'unknown';
|
---|
| 882 |
|
---|
| 883 | unset($this->_markers);
|
---|
| 884 | unset($this->_info);
|
---|
| 885 | }
|
---|
| 886 |
|
---|
| 887 | /*************************************************************/
|
---|
| 888 | function _readJPEG() {
|
---|
| 889 | unset($this->_markers);
|
---|
| 890 | //unset($this->_info);
|
---|
| 891 | $this->_markers = array();
|
---|
| 892 | //$this->_info = array();
|
---|
| 893 |
|
---|
| 894 | $this->_fp = @fopen($this->_fileName, 'rb');
|
---|
| 895 | if ($this->_fp) {
|
---|
| 896 | if (file_exists($this->_fileName)) {
|
---|
| 897 | $this->_type = 'file';
|
---|
| 898 | }
|
---|
| 899 | else {
|
---|
| 900 | $this->_type = 'url';
|
---|
| 901 | }
|
---|
| 902 | } else {
|
---|
| 903 | $this->_fp = null;
|
---|
| 904 | return false; // ERROR: Can't open file
|
---|
| 905 | }
|
---|
| 906 |
|
---|
| 907 | // Check for the JPEG signature
|
---|
| 908 | $c1 = ord(fgetc($this->_fp));
|
---|
| 909 | $c2 = ord(fgetc($this->_fp));
|
---|
| 910 |
|
---|
| 911 | if ($c1 != 0xFF || $c2 != 0xD8) { // (0xFF + SOI)
|
---|
| 912 | $this->_markers = null;
|
---|
| 913 | return false; // ERROR: File is not a JPEG
|
---|
| 914 | }
|
---|
| 915 |
|
---|
| 916 | $count = 0;
|
---|
| 917 |
|
---|
| 918 | $done = false;
|
---|
| 919 | $ok = true;
|
---|
| 920 |
|
---|
| 921 | while (!$done) {
|
---|
| 922 | $capture = false;
|
---|
| 923 |
|
---|
| 924 | // First, skip any non 0xFF bytes
|
---|
| 925 | $discarded = 0;
|
---|
| 926 | $c = ord(fgetc($this->_fp));
|
---|
| 927 | while (!feof($this->_fp) && ($c != 0xFF)) {
|
---|
| 928 | $discarded++;
|
---|
| 929 | $c = ord(fgetc($this->_fp));
|
---|
| 930 | }
|
---|
| 931 | // Then skip all 0xFF until the marker byte
|
---|
| 932 | do {
|
---|
| 933 | $marker = ord(fgetc($this->_fp));
|
---|
| 934 | } while (!feof($this->_fp) && ($marker == 0xFF));
|
---|
| 935 |
|
---|
| 936 | if (feof($this->_fp)) {
|
---|
| 937 | return false; // ERROR: Unexpected EOF
|
---|
| 938 | }
|
---|
| 939 | if ($discarded != 0) {
|
---|
| 940 | return false; // ERROR: Extraneous data
|
---|
| 941 | }
|
---|
| 942 |
|
---|
| 943 | $length = ord(fgetc($this->_fp)) * 256 + ord(fgetc($this->_fp));
|
---|
| 944 | if (feof($this->_fp)) {
|
---|
| 945 | return false; // ERROR: Unexpected EOF
|
---|
| 946 | }
|
---|
| 947 | if ($length < 2) {
|
---|
| 948 | return false; // ERROR: Extraneous data
|
---|
| 949 | }
|
---|
| 950 | $length = $length - 2; // The length we got counts itself
|
---|
| 951 |
|
---|
| 952 | switch ($marker) {
|
---|
| 953 | case 0xC0: // SOF0
|
---|
| 954 | case 0xC1: // SOF1
|
---|
| 955 | case 0xC2: // SOF2
|
---|
| 956 | case 0xC9: // SOF9
|
---|
| 957 | case 0xE0: // APP0: JFIF data
|
---|
| 958 | case 0xE1: // APP1: EXIF or XMP data
|
---|
| 959 | case 0xED: // APP13: IPTC / Photoshop data
|
---|
| 960 | $capture = true;
|
---|
| 961 | break;
|
---|
| 962 | case 0xDA: // SOS: Start of scan... the image itself and the last block on the file
|
---|
| 963 | $capture = false;
|
---|
| 964 | $length = -1; // This field has no length... it includes all data until EOF
|
---|
| 965 | $done = true;
|
---|
| 966 | break;
|
---|
| 967 | default:
|
---|
| 968 | $capture = true;//false;
|
---|
| 969 | break;
|
---|
| 970 | }
|
---|
| 971 |
|
---|
| 972 | $this->_markers[$count] = array();
|
---|
| 973 | $this->_markers[$count]['marker'] = $marker;
|
---|
| 974 | $this->_markers[$count]['length'] = $length;
|
---|
| 975 |
|
---|
| 976 | if ($capture) {
|
---|
| 977 | if ($length)
|
---|
| 978 | $this->_markers[$count]['data'] =& fread($this->_fp, $length);
|
---|
| 979 | else
|
---|
| 980 | $this->_markers[$count]['data'] = "";
|
---|
| 981 | }
|
---|
| 982 | elseif (!$done) {
|
---|
| 983 | $result = @fseek($this->_fp, $length, SEEK_CUR);
|
---|
| 984 | // fseek doesn't seem to like HTTP 'files', but fgetc has no problem
|
---|
| 985 | if (!($result === 0)) {
|
---|
| 986 | for ($i = 0; $i < $length; $i++) {
|
---|
| 987 | fgetc($this->_fp);
|
---|
| 988 | }
|
---|
| 989 | }
|
---|
| 990 | }
|
---|
| 991 | $count++;
|
---|
| 992 | }
|
---|
| 993 |
|
---|
| 994 | if ($this->_fp) {
|
---|
| 995 | fclose($this->_fp);
|
---|
| 996 | $this->_fp = null;
|
---|
| 997 | }
|
---|
| 998 |
|
---|
| 999 | return $ok;
|
---|
| 1000 | }
|
---|
| 1001 |
|
---|
| 1002 | /*************************************************************/
|
---|
| 1003 | function _parseAll() {
|
---|
| 1004 | if (!isset($this->_info['file'])) {
|
---|
| 1005 | $this->_parseFileInfo();
|
---|
| 1006 | }
|
---|
| 1007 | if (!isset($this->_markers)) {
|
---|
| 1008 | $this->_readJPEG();
|
---|
| 1009 | }
|
---|
| 1010 |
|
---|
| 1011 | if ($this->_markers == null) {
|
---|
| 1012 | return false;
|
---|
| 1013 | }
|
---|
| 1014 |
|
---|
| 1015 | if (!isset($this->_info['jfif'])) {
|
---|
| 1016 | $this->_parseMarkerJFIF();
|
---|
| 1017 | }
|
---|
| 1018 | if (!isset($this->_info['jpeg'])) {
|
---|
| 1019 | $this->_parseMarkerSOF();
|
---|
| 1020 | }
|
---|
| 1021 | if (!isset($this->_info['exif'])) {
|
---|
| 1022 | $this->_parseMarkerExif();
|
---|
| 1023 | }
|
---|
| 1024 | if (!isset($this->_info['xmp'])) {
|
---|
| 1025 | $this->_parseMarkerXmp();
|
---|
| 1026 | }
|
---|
| 1027 | if (!isset($this->_info['adobe'])) {
|
---|
| 1028 | $this->_parseMarkerAdobe();
|
---|
| 1029 | }
|
---|
| 1030 | }
|
---|
| 1031 |
|
---|
| 1032 | /*************************************************************/
|
---|
| 1033 | function _writeJPEG($outputName) {
|
---|
| 1034 | $this->_parseAll();
|
---|
| 1035 |
|
---|
| 1036 | $wroteEXIF = false;
|
---|
| 1037 | $wroteAdobe = false;
|
---|
| 1038 |
|
---|
| 1039 | $this->_fp = @fopen($this->_fileName, 'r');
|
---|
| 1040 | if ($this->_fp) {
|
---|
| 1041 | if (file_exists($this->_fileName)) {
|
---|
| 1042 | $this->_type = 'file';
|
---|
| 1043 | }
|
---|
| 1044 | else {
|
---|
| 1045 | $this->_type = 'url';
|
---|
| 1046 | }
|
---|
| 1047 | } else {
|
---|
| 1048 | $this->_fp = null;
|
---|
| 1049 | return false; // ERROR: Can't open file
|
---|
| 1050 | }
|
---|
| 1051 |
|
---|
| 1052 | $this->_fpout = fopen($outputName, 'wb');
|
---|
| 1053 | if (!$this->_fpout) {
|
---|
| 1054 | $this->_fpout = null;
|
---|
| 1055 | fclose($this->_fp);
|
---|
| 1056 | $this->_fp = null;
|
---|
| 1057 | return false; // ERROR: Can't open output file
|
---|
| 1058 | }
|
---|
| 1059 |
|
---|
| 1060 | // Check for the JPEG signature
|
---|
| 1061 | $c1 = ord(fgetc($this->_fp));
|
---|
| 1062 | $c2 = ord(fgetc($this->_fp));
|
---|
| 1063 |
|
---|
| 1064 | if ($c1 != 0xFF || $c2 != 0xD8) { // (0xFF + SOI)
|
---|
| 1065 | return false; // ERROR: File is not a JPEG
|
---|
| 1066 | }
|
---|
| 1067 |
|
---|
| 1068 | fputs($this->_fpout, chr(0xFF), 1);
|
---|
| 1069 | fputs($this->_fpout, chr(0xD8), 1); // (0xFF + SOI)
|
---|
| 1070 |
|
---|
| 1071 | $count = 0;
|
---|
| 1072 |
|
---|
| 1073 | $done = false;
|
---|
| 1074 | $ok = true;
|
---|
| 1075 |
|
---|
| 1076 | while (!$done) {
|
---|
| 1077 | // First, skip any non 0xFF bytes
|
---|
| 1078 | $discarded = 0;
|
---|
| 1079 | $c = ord(fgetc($this->_fp));
|
---|
| 1080 | while (!feof($this->_fp) && ($c != 0xFF)) {
|
---|
| 1081 | $discarded++;
|
---|
| 1082 | $c = ord(fgetc($this->_fp));
|
---|
| 1083 | }
|
---|
| 1084 | // Then skip all 0xFF until the marker byte
|
---|
| 1085 | do {
|
---|
| 1086 | $marker = ord(fgetc($this->_fp));
|
---|
| 1087 | } while (!feof($this->_fp) && ($marker == 0xFF));
|
---|
| 1088 |
|
---|
| 1089 | if (feof($this->_fp)) {
|
---|
| 1090 | $ok = false;
|
---|
| 1091 | break; // ERROR: Unexpected EOF
|
---|
| 1092 | }
|
---|
| 1093 | if ($discarded != 0) {
|
---|
| 1094 | $ok = false;
|
---|
| 1095 | break; // ERROR: Extraneous data
|
---|
| 1096 | }
|
---|
| 1097 |
|
---|
| 1098 | $length = ord(fgetc($this->_fp)) * 256 + ord(fgetc($this->_fp));
|
---|
| 1099 | if (feof($this->_fp)) {
|
---|
| 1100 | $ok = false;
|
---|
| 1101 | break; // ERROR: Unexpected EOF
|
---|
| 1102 | }
|
---|
| 1103 | if ($length < 2) {
|
---|
| 1104 | $ok = false;
|
---|
| 1105 | break; // ERROR: Extraneous data
|
---|
| 1106 | }
|
---|
| 1107 | $length = $length - 2; // The length we got counts itself
|
---|
| 1108 |
|
---|
| 1109 | unset($data);
|
---|
| 1110 | if ($marker == 0xE1) { // APP1: EXIF data
|
---|
| 1111 | $data =& $this->_createMarkerEXIF();
|
---|
| 1112 | $wroteEXIF = true;
|
---|
| 1113 | }
|
---|
| 1114 | elseif ($marker == 0xED) { // APP13: IPTC / Photoshop data
|
---|
| 1115 | $data =& $this->_createMarkerAdobe();
|
---|
| 1116 | $wroteAdobe = true;
|
---|
| 1117 | }
|
---|
| 1118 | elseif ($marker == 0xDA) { // SOS: Start of scan... the image itself and the last block on the file
|
---|
| 1119 | $done = true;
|
---|
| 1120 | }
|
---|
| 1121 |
|
---|
| 1122 | if (!$wroteEXIF && (($marker < 0xE0) || ($marker > 0xEF))) {
|
---|
| 1123 | if (isset($this->_info['exif']) && is_array($this->_info['exif'])) {
|
---|
| 1124 | $exif =& $this->_createMarkerEXIF();
|
---|
| 1125 | $this->_writeJPEGMarker(0xE1, strlen($exif), $exif, 0);
|
---|
| 1126 | unset($exif);
|
---|
| 1127 | }
|
---|
| 1128 | $wroteEXIF = true;
|
---|
| 1129 | }
|
---|
| 1130 |
|
---|
| 1131 | if (!$wroteAdobe && (($marker < 0xE0) || ($marker > 0xEF))) {
|
---|
| 1132 | if ((isset($this->_info['adobe']) && is_array($this->_info['adobe']))
|
---|
| 1133 | || (isset($this->_info['iptc']) && is_array($this->_info['iptc']))) {
|
---|
| 1134 | $adobe =& $this->_createMarkerAdobe();
|
---|
| 1135 | $this->_writeJPEGMarker(0xED, strlen($adobe), $adobe, 0);
|
---|
| 1136 | unset($adobe);
|
---|
| 1137 | }
|
---|
| 1138 | $wroteAdobe = true;
|
---|
| 1139 | }
|
---|
| 1140 |
|
---|
| 1141 | $origLength = $length;
|
---|
| 1142 | if (isset($data)) {
|
---|
| 1143 | $length = strlen($data);
|
---|
| 1144 | }
|
---|
| 1145 |
|
---|
| 1146 | if ($marker != -1) {
|
---|
| 1147 | $this->_writeJPEGMarker($marker, $length, $data, $origLength);
|
---|
| 1148 | }
|
---|
| 1149 | }
|
---|
| 1150 |
|
---|
| 1151 | if ($this->_fp) {
|
---|
| 1152 | fclose($this->_fp);
|
---|
| 1153 | $this->_fp = null;
|
---|
| 1154 | }
|
---|
| 1155 |
|
---|
| 1156 | if ($this->_fpout) {
|
---|
| 1157 | fclose($this->_fpout);
|
---|
| 1158 | $this->_fpout = null;
|
---|
| 1159 | }
|
---|
| 1160 |
|
---|
| 1161 | return $ok;
|
---|
| 1162 | }
|
---|
| 1163 |
|
---|
| 1164 | /*************************************************************/
|
---|
| 1165 | function _writeJPEGMarker($marker, $length, &$data, $origLength) {
|
---|
| 1166 | if ($length <= 0) {
|
---|
| 1167 | return false;
|
---|
| 1168 | }
|
---|
| 1169 |
|
---|
| 1170 | fputs($this->_fpout, chr(0xFF), 1);
|
---|
| 1171 | fputs($this->_fpout, chr($marker), 1);
|
---|
| 1172 | fputs($this->_fpout, chr((($length + 2) & 0x0000FF00) >> 8), 1);
|
---|
| 1173 | fputs($this->_fpout, chr((($length + 2) & 0x000000FF) >> 0), 1);
|
---|
| 1174 |
|
---|
| 1175 | if (isset($data)) {
|
---|
| 1176 | // Copy the generated data
|
---|
| 1177 | fputs($this->_fpout, $data, $length);
|
---|
| 1178 |
|
---|
| 1179 | if ($origLength > 0) { // Skip the original data
|
---|
| 1180 | $result = @fseek($this->_fp, $origLength, SEEK_CUR);
|
---|
| 1181 | // fseek doesn't seem to like HTTP 'files', but fgetc has no problem
|
---|
| 1182 | if ($result != 0) {
|
---|
| 1183 | for ($i = 0; $i < $origLength; $i++) {
|
---|
| 1184 | fgetc($this->_fp);
|
---|
| 1185 | }
|
---|
| 1186 | }
|
---|
| 1187 | }
|
---|
| 1188 | } else {
|
---|
| 1189 | if ($marker == 0xDA) { // Copy until EOF
|
---|
| 1190 | while (!feof($this->_fp)) {
|
---|
| 1191 | $data = fread($this->_fp, 1024 * 16);
|
---|
| 1192 | fputs($this->_fpout, $data, strlen($data));
|
---|
| 1193 | }
|
---|
| 1194 | } else { // Copy only $length bytes
|
---|
| 1195 | $data = @fread($this->_fp, $length);
|
---|
| 1196 | fputs($this->_fpout, $data, $length);
|
---|
| 1197 | }
|
---|
| 1198 | }
|
---|
| 1199 |
|
---|
| 1200 | return true;
|
---|
| 1201 | }
|
---|
| 1202 |
|
---|
| 1203 | /**
|
---|
| 1204 | * Gets basic info from the file - should work with non-JPEGs
|
---|
| 1205 | *
|
---|
| 1206 | * @author Sebastian Delmont <[email protected]>
|
---|
| 1207 | * @author Andreas Gohr <[email protected]>
|
---|
| 1208 | */
|
---|
| 1209 | function _parseFileInfo() {
|
---|
| 1210 | if (file_exists($this->_fileName)) {
|
---|
| 1211 | $this->_info['file'] = array();
|
---|
| 1212 | $this->_info['file']['Name'] = basename($this->_fileName);
|
---|
| 1213 | $this->_info['file']['Path'] = fullpath($this->_fileName);
|
---|
| 1214 | $this->_info['file']['Size'] = filesize($this->_fileName);
|
---|
| 1215 | if ($this->_info['file']['Size'] < 1024) {
|
---|
| 1216 | $this->_info['file']['NiceSize'] = $this->_info['file']['Size'] . 'B';
|
---|
| 1217 | } elseif ($this->_info['file']['Size'] < (1024 * 1024)) {
|
---|
| 1218 | $this->_info['file']['NiceSize'] = round($this->_info['file']['Size'] / 1024) . 'KB';
|
---|
| 1219 | } elseif ($this->_info['file']['Size'] < (1024 * 1024 * 1024)) {
|
---|
| 1220 | $this->_info['file']['NiceSize'] = round($this->_info['file']['Size'] / (1024*1024)) . 'MB';
|
---|
| 1221 | } else {
|
---|
| 1222 | $this->_info['file']['NiceSize'] = $this->_info['file']['Size'] . 'B';
|
---|
| 1223 | }
|
---|
| 1224 | $this->_info['file']['UnixTime'] = filemtime($this->_fileName);
|
---|
| 1225 |
|
---|
| 1226 | // get image size directly from file
|
---|
| 1227 | $size = getimagesize($this->_fileName);
|
---|
| 1228 | $this->_info['file']['Width'] = $size[0];
|
---|
| 1229 | $this->_info['file']['Height'] = $size[1];
|
---|
| 1230 | // set mime types and formats
|
---|
| 1231 | // http://www.php.net/manual/en/function.getimagesize.php
|
---|
| 1232 | // http://www.php.net/manual/en/function.image-type-to-mime-type.php
|
---|
| 1233 | switch ($size[2]){
|
---|
| 1234 | case 1:
|
---|
| 1235 | $this->_info['file']['Mime'] = 'image/gif';
|
---|
| 1236 | $this->_info['file']['Format'] = 'GIF';
|
---|
| 1237 | break;
|
---|
| 1238 | case 2:
|
---|
| 1239 | $this->_info['file']['Mime'] = 'image/jpeg';
|
---|
| 1240 | $this->_info['file']['Format'] = 'JPEG';
|
---|
| 1241 | break;
|
---|
| 1242 | case 3:
|
---|
| 1243 | $this->_info['file']['Mime'] = 'image/png';
|
---|
| 1244 | $this->_info['file']['Format'] = 'PNG';
|
---|
| 1245 | break;
|
---|
| 1246 | case 4:
|
---|
| 1247 | $this->_info['file']['Mime'] = 'application/x-shockwave-flash';
|
---|
| 1248 | $this->_info['file']['Format'] = 'SWF';
|
---|
| 1249 | break;
|
---|
| 1250 | case 5:
|
---|
| 1251 | $this->_info['file']['Mime'] = 'image/psd';
|
---|
| 1252 | $this->_info['file']['Format'] = 'PSD';
|
---|
| 1253 | break;
|
---|
| 1254 | case 6:
|
---|
| 1255 | $this->_info['file']['Mime'] = 'image/bmp';
|
---|
| 1256 | $this->_info['file']['Format'] = 'BMP';
|
---|
| 1257 | break;
|
---|
| 1258 | case 7:
|
---|
| 1259 | $this->_info['file']['Mime'] = 'image/tiff';
|
---|
| 1260 | $this->_info['file']['Format'] = 'TIFF (Intel)';
|
---|
| 1261 | break;
|
---|
| 1262 | case 8:
|
---|
| 1263 | $this->_info['file']['Mime'] = 'image/tiff';
|
---|
| 1264 | $this->_info['file']['Format'] = 'TIFF (Motorola)';
|
---|
| 1265 | break;
|
---|
| 1266 | case 9:
|
---|
| 1267 | $this->_info['file']['Mime'] = 'application/octet-stream';
|
---|
| 1268 | $this->_info['file']['Format'] = 'JPC';
|
---|
| 1269 | break;
|
---|
| 1270 | case 10:
|
---|
| 1271 | $this->_info['file']['Mime'] = 'image/jp2';
|
---|
| 1272 | $this->_info['file']['Format'] = 'JP2';
|
---|
| 1273 | break;
|
---|
| 1274 | case 11:
|
---|
| 1275 | $this->_info['file']['Mime'] = 'application/octet-stream';
|
---|
| 1276 | $this->_info['file']['Format'] = 'JPX';
|
---|
| 1277 | break;
|
---|
| 1278 | case 12:
|
---|
| 1279 | $this->_info['file']['Mime'] = 'application/octet-stream';
|
---|
| 1280 | $this->_info['file']['Format'] = 'JB2';
|
---|
| 1281 | break;
|
---|
| 1282 | case 13:
|
---|
| 1283 | $this->_info['file']['Mime'] = 'application/x-shockwave-flash';
|
---|
| 1284 | $this->_info['file']['Format'] = 'SWC';
|
---|
| 1285 | break;
|
---|
| 1286 | case 14:
|
---|
| 1287 | $this->_info['file']['Mime'] = 'image/iff';
|
---|
| 1288 | $this->_info['file']['Format'] = 'IFF';
|
---|
| 1289 | break;
|
---|
| 1290 | case 15:
|
---|
| 1291 | $this->_info['file']['Mime'] = 'image/vnd.wap.wbmp';
|
---|
| 1292 | $this->_info['file']['Format'] = 'WBMP';
|
---|
| 1293 | break;
|
---|
| 1294 | case 16:
|
---|
| 1295 | $this->_info['file']['Mime'] = 'image/xbm';
|
---|
| 1296 | $this->_info['file']['Format'] = 'XBM';
|
---|
| 1297 | break;
|
---|
| 1298 | default:
|
---|
| 1299 | $this->_info['file']['Mime'] = 'image/unknown';
|
---|
| 1300 | }
|
---|
| 1301 | } else {
|
---|
| 1302 | $this->_info['file'] = array();
|
---|
| 1303 | $this->_info['file']['Name'] = basename($this->_fileName);
|
---|
| 1304 | $this->_info['file']['Url'] = $this->_fileName;
|
---|
| 1305 | }
|
---|
| 1306 |
|
---|
| 1307 | return true;
|
---|
| 1308 | }
|
---|
| 1309 |
|
---|
| 1310 | /*************************************************************/
|
---|
| 1311 | function _parseMarkerJFIF() {
|
---|
| 1312 | if (!isset($this->_markers)) {
|
---|
| 1313 | $this->_readJPEG();
|
---|
| 1314 | }
|
---|
| 1315 |
|
---|
| 1316 | if ($this->_markers == null) {
|
---|
| 1317 | return false;
|
---|
| 1318 | }
|
---|
| 1319 |
|
---|
| 1320 | $data = null;
|
---|
| 1321 | $count = count($this->_markers);
|
---|
| 1322 | for ($i = 0; $i < $count; $i++) {
|
---|
| 1323 | if ($this->_markers[$i]['marker'] == 0xE0) {
|
---|
| 1324 | $signature = $this->_getFixedString($this->_markers[$i]['data'], 0, 4);
|
---|
| 1325 | if ($signature == 'JFIF') {
|
---|
| 1326 | $data =& $this->_markers[$i]['data'];
|
---|
| 1327 | break;
|
---|
| 1328 | }
|
---|
| 1329 | }
|
---|
| 1330 | }
|
---|
| 1331 |
|
---|
| 1332 | if ($data == null) {
|
---|
| 1333 | $this->_info['jfif'] = false;
|
---|
| 1334 | return false;
|
---|
| 1335 | }
|
---|
| 1336 |
|
---|
| 1337 | $pos = 0;
|
---|
| 1338 | $this->_info['jfif'] = array();
|
---|
| 1339 |
|
---|
| 1340 | $vmaj = $this->_getByte($data, 5);
|
---|
| 1341 | $vmin = $this->_getByte($data, 6);
|
---|
| 1342 |
|
---|
| 1343 | $this->_info['jfif']['Version'] = sprintf('%d.%02d', $vmaj, $vmin);
|
---|
| 1344 |
|
---|
| 1345 | $units = $this->_getByte($data, 7);
|
---|
| 1346 | switch ($units) {
|
---|
| 1347 | case 0:
|
---|
| 1348 | $this->_info['jfif']['Units'] = 'pixels';
|
---|
| 1349 | break;
|
---|
| 1350 | case 1:
|
---|
| 1351 | $this->_info['jfif']['Units'] = 'dpi';
|
---|
| 1352 | break;
|
---|
| 1353 | case 2:
|
---|
| 1354 | $this->_info['jfif']['Units'] = 'dpcm';
|
---|
| 1355 | break;
|
---|
| 1356 | default:
|
---|
| 1357 | $this->_info['jfif']['Units'] = 'unknown';
|
---|
| 1358 | break;
|
---|
| 1359 | }
|
---|
| 1360 |
|
---|
| 1361 | $xdens = $this->_getShort($data, 8);
|
---|
| 1362 | $ydens = $this->_getShort($data, 10);
|
---|
| 1363 |
|
---|
| 1364 | $this->_info['jfif']['XDensity'] = $xdens;
|
---|
| 1365 | $this->_info['jfif']['YDensity'] = $ydens;
|
---|
| 1366 |
|
---|
| 1367 | $thumbx = $this->_getByte($data, 12);
|
---|
| 1368 | $thumby = $this->_getByte($data, 13);
|
---|
| 1369 |
|
---|
| 1370 | $this->_info['jfif']['ThumbnailWidth'] = $thumbx;
|
---|
| 1371 | $this->_info['jfif']['ThumbnailHeight'] = $thumby;
|
---|
| 1372 |
|
---|
| 1373 | return true;
|
---|
| 1374 | }
|
---|
| 1375 |
|
---|
| 1376 | /*************************************************************/
|
---|
| 1377 | function _parseMarkerSOF() {
|
---|
| 1378 | if (!isset($this->_markers)) {
|
---|
| 1379 | $this->_readJPEG();
|
---|
| 1380 | }
|
---|
| 1381 |
|
---|
| 1382 | if ($this->_markers == null) {
|
---|
| 1383 | return false;
|
---|
| 1384 | }
|
---|
| 1385 |
|
---|
| 1386 | $data = null;
|
---|
| 1387 | $count = count($this->_markers);
|
---|
| 1388 | for ($i = 0; $i < $count; $i++) {
|
---|
| 1389 | switch ($this->_markers[$i]['marker']) {
|
---|
| 1390 | case 0xC0: // SOF0
|
---|
| 1391 | case 0xC1: // SOF1
|
---|
| 1392 | case 0xC2: // SOF2
|
---|
| 1393 | case 0xC9: // SOF9
|
---|
| 1394 | $data =& $this->_markers[$i]['data'];
|
---|
| 1395 | $marker = $this->_markers[$i]['marker'];
|
---|
| 1396 | break;
|
---|
| 1397 | }
|
---|
| 1398 | }
|
---|
| 1399 |
|
---|
| 1400 | if ($data == null) {
|
---|
| 1401 | $this->_info['sof'] = false;
|
---|
| 1402 | return false;
|
---|
| 1403 | }
|
---|
| 1404 |
|
---|
| 1405 | $pos = 0;
|
---|
| 1406 | $this->_info['sof'] = array();
|
---|
| 1407 |
|
---|
| 1408 | switch ($marker) {
|
---|
| 1409 | case 0xC0: // SOF0
|
---|
| 1410 | $format = 'Baseline';
|
---|
| 1411 | break;
|
---|
| 1412 | case 0xC1: // SOF1
|
---|
| 1413 | $format = 'Progessive';
|
---|
| 1414 | break;
|
---|
| 1415 | case 0xC2: // SOF2
|
---|
| 1416 | $format = 'Non-baseline';
|
---|
| 1417 | break;
|
---|
| 1418 | case 0xC9: // SOF9
|
---|
| 1419 | $format = 'Arithmetic';
|
---|
| 1420 | break;
|
---|
| 1421 | default:
|
---|
| 1422 | return false;
|
---|
| 1423 | break;
|
---|
| 1424 | }
|
---|
| 1425 |
|
---|
| 1426 | $this->_info['sof']['Format'] = $format;
|
---|
| 1427 | $this->_info['sof']['SamplePrecision'] = $this->_getByte($data, $pos + 0);
|
---|
| 1428 | $this->_info['sof']['ImageHeight'] = $this->_getShort($data, $pos + 1);
|
---|
| 1429 | $this->_info['sof']['ImageWidth'] = $this->_getShort($data, $pos + 3);
|
---|
| 1430 | $this->_info['sof']['ColorChannels'] = $this->_getByte($data, $pos + 5);
|
---|
| 1431 |
|
---|
| 1432 | return true;
|
---|
| 1433 | }
|
---|
| 1434 |
|
---|
| 1435 | /**
|
---|
| 1436 | * Parses the XMP data
|
---|
| 1437 | *
|
---|
| 1438 | * @author Hakan Sandell <[email protected]>
|
---|
| 1439 | */
|
---|
| 1440 | function _parseMarkerXmp() {
|
---|
| 1441 | if (!isset($this->_markers)) {
|
---|
| 1442 | $this->_readJPEG();
|
---|
| 1443 | }
|
---|
| 1444 |
|
---|
| 1445 | if ($this->_markers == null) {
|
---|
| 1446 | return false;
|
---|
| 1447 | }
|
---|
| 1448 |
|
---|
| 1449 | $data = null;
|
---|
| 1450 | $count = count($this->_markers);
|
---|
| 1451 | for ($i = 0; $i < $count; $i++) {
|
---|
| 1452 | if ($this->_markers[$i]['marker'] == 0xE1) {
|
---|
| 1453 | $signature = $this->_getFixedString($this->_markers[$i]['data'], 0, 29);
|
---|
| 1454 | if ($signature == "http://ns.adobe.com/xap/1.0/\0") {
|
---|
| 1455 | $data =& substr($this->_markers[$i]['data'], 29);
|
---|
| 1456 | break;
|
---|
| 1457 | }
|
---|
| 1458 | }
|
---|
| 1459 | }
|
---|
| 1460 |
|
---|
| 1461 | if ($data == null) {
|
---|
| 1462 | $this->_info['xmp'] = false;
|
---|
| 1463 | return false;
|
---|
| 1464 | }
|
---|
| 1465 |
|
---|
| 1466 | $parser = xml_parser_create();
|
---|
| 1467 | xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
|
---|
| 1468 | xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
|
---|
| 1469 | $result = xml_parse_into_struct($parser, $data, $values, $tags);
|
---|
| 1470 | xml_parser_free($parser);
|
---|
| 1471 |
|
---|
| 1472 | if ($result == 0) {
|
---|
| 1473 | $this->_info['xmp'] = false;
|
---|
| 1474 | return false;
|
---|
| 1475 | }
|
---|
| 1476 |
|
---|
| 1477 | $this->_info['xmp'] = array();
|
---|
| 1478 | $count = count($values);
|
---|
| 1479 | for ($i = 0; $i < $count; $i++) {
|
---|
| 1480 | if ($values[$i]['tag'] == 'rdf:Description' && $values[$i]['type'] == 'open') {
|
---|
| 1481 |
|
---|
| 1482 | while ((++$i < $count) && ($values[$i]['tag'] != 'rdf:Description')) {
|
---|
| 1483 | $this->_parseXmpNode($values, $i, $this->_info['xmp'][$values[$i]['tag']], $count);
|
---|
| 1484 | }
|
---|
| 1485 | }
|
---|
| 1486 | }
|
---|
| 1487 | return true;
|
---|
| 1488 | }
|
---|
| 1489 |
|
---|
| 1490 | /**
|
---|
| 1491 | * Parses XMP nodes by recursion
|
---|
| 1492 | *
|
---|
| 1493 | * @author Hakan Sandell <[email protected]>
|
---|
| 1494 | */
|
---|
| 1495 | function _parseXmpNode($values, &$i, &$meta, $count) {
|
---|
| 1496 | if ($values[$i]['type'] == 'close') return;
|
---|
| 1497 |
|
---|
| 1498 | if ($values[$i]['type'] == 'complete') {
|
---|
| 1499 | // Simple Type property
|
---|
| 1500 | $meta = $values[$i]['value'];
|
---|
| 1501 | return;
|
---|
| 1502 | }
|
---|
| 1503 |
|
---|
| 1504 | $i++;
|
---|
| 1505 | if ($i >= $count) return;
|
---|
| 1506 |
|
---|
| 1507 | if ($values[$i]['tag'] == 'rdf:Bag' || $values[$i]['tag'] == 'rdf:Seq') {
|
---|
| 1508 | // Array property
|
---|
| 1509 | $meta = array();
|
---|
| 1510 | while ($values[++$i]['tag'] == 'rdf:li') {
|
---|
| 1511 | $this->_parseXmpNode($values, $i, $meta[], $count);
|
---|
| 1512 | }
|
---|
| 1513 | $i++; // skip closing Bag/Seq tag
|
---|
| 1514 |
|
---|
| 1515 | } elseif ($values[$i]['tag'] == 'rdf:Alt') {
|
---|
| 1516 | // Language Alternative property, only the first (default) value is used
|
---|
| 1517 | if ($values[$i]['type'] == 'open') {
|
---|
| 1518 | $i++;
|
---|
| 1519 | $this->_parseXmpNode($values, $i, $meta, $count);
|
---|
| 1520 | while ((++$i < $count) && ($values[$i]['tag'] != 'rdf:Alt'));
|
---|
| 1521 | $i++; // skip closing Alt tag
|
---|
| 1522 | }
|
---|
| 1523 |
|
---|
| 1524 | } else {
|
---|
| 1525 | // Structure property
|
---|
| 1526 | $meta = array();
|
---|
| 1527 | $startTag = $values[$i-1]['tag'];
|
---|
| 1528 | do {
|
---|
| 1529 | $this->_parseXmpNode($values, $i, $meta[$values[$i]['tag']], $count);
|
---|
| 1530 | } while ((++$i < $count) && ($values[$i]['tag'] != $startTag));
|
---|
| 1531 | }
|
---|
| 1532 | }
|
---|
| 1533 |
|
---|
| 1534 | /*************************************************************/
|
---|
| 1535 | function _parseMarkerExif() {
|
---|
| 1536 | if (!isset($this->_markers)) {
|
---|
| 1537 | $this->_readJPEG();
|
---|
| 1538 | }
|
---|
| 1539 |
|
---|
| 1540 | if ($this->_markers == null) {
|
---|
| 1541 | return false;
|
---|
| 1542 | }
|
---|
| 1543 |
|
---|
| 1544 | $data = null;
|
---|
| 1545 | $count = count($this->_markers);
|
---|
| 1546 | for ($i = 0; $i < $count; $i++) {
|
---|
| 1547 | if ($this->_markers[$i]['marker'] == 0xE1) {
|
---|
| 1548 | $signature = $this->_getFixedString($this->_markers[$i]['data'], 0, 6);
|
---|
| 1549 | if ($signature == "Exif\0\0") {
|
---|
| 1550 | $data =& $this->_markers[$i]['data'];
|
---|
| 1551 | break;
|
---|
| 1552 | }
|
---|
| 1553 | }
|
---|
| 1554 | }
|
---|
| 1555 |
|
---|
| 1556 | if ($data == null) {
|
---|
| 1557 | $this->_info['exif'] = false;
|
---|
| 1558 | return false;
|
---|
| 1559 | }
|
---|
| 1560 | $pos = 6;
|
---|
| 1561 | $this->_info['exif'] = array();
|
---|
| 1562 |
|
---|
| 1563 | // We don't increment $pos after this because Exif uses offsets relative to this point
|
---|
| 1564 |
|
---|
| 1565 | $byteAlign = $this->_getShort($data, $pos + 0);
|
---|
| 1566 |
|
---|
| 1567 | if ($byteAlign == 0x4949) { // "II"
|
---|
| 1568 | $isBigEndian = false;
|
---|
| 1569 | } elseif ($byteAlign == 0x4D4D) { // "MM"
|
---|
| 1570 | $isBigEndian = true;
|
---|
| 1571 | } else {
|
---|
| 1572 | return false; // Unexpected data
|
---|
| 1573 | }
|
---|
| 1574 |
|
---|
| 1575 | $alignCheck = $this->_getShort($data, $pos + 2, $isBigEndian);
|
---|
| 1576 | if ($alignCheck != 0x002A) // That's the expected value
|
---|
| 1577 | return false; // Unexpected data
|
---|
| 1578 |
|
---|
| 1579 | if ($isBigEndian) {
|
---|
| 1580 | $this->_info['exif']['ByteAlign'] = "Big Endian";
|
---|
| 1581 | } else {
|
---|
| 1582 | $this->_info['exif']['ByteAlign'] = "Little Endian";
|
---|
| 1583 | }
|
---|
| 1584 |
|
---|
| 1585 | $offsetIFD0 = $this->_getLong($data, $pos + 4, $isBigEndian);
|
---|
| 1586 | if ($offsetIFD0 < 8)
|
---|
| 1587 | return false; // Unexpected data
|
---|
| 1588 |
|
---|
| 1589 | $offsetIFD1 = $this->_readIFD($data, $pos, $offsetIFD0, $isBigEndian, 'ifd0');
|
---|
| 1590 | if ($offsetIFD1 != 0)
|
---|
| 1591 | $this->_readIFD($data, $pos, $offsetIFD1, $isBigEndian, 'ifd1');
|
---|
| 1592 |
|
---|
| 1593 | return true;
|
---|
| 1594 | }
|
---|
| 1595 |
|
---|
| 1596 | /*************************************************************/
|
---|
| 1597 | function _readIFD($data, $base, $offset, $isBigEndian, $mode) {
|
---|
| 1598 | $EXIFTags = $this->_exifTagNames($mode);
|
---|
| 1599 |
|
---|
| 1600 | $numEntries = $this->_getShort($data, $base + $offset, $isBigEndian);
|
---|
| 1601 | $offset += 2;
|
---|
| 1602 |
|
---|
| 1603 | $exifTIFFOffset = 0;
|
---|
| 1604 | $exifTIFFLength = 0;
|
---|
| 1605 | $exifThumbnailOffset = 0;
|
---|
| 1606 | $exifThumbnailLength = 0;
|
---|
| 1607 |
|
---|
| 1608 | for ($i = 0; $i < $numEntries; $i++) {
|
---|
| 1609 | $tag = $this->_getShort($data, $base + $offset, $isBigEndian);
|
---|
| 1610 | $offset += 2;
|
---|
| 1611 | $type = $this->_getShort($data, $base + $offset, $isBigEndian);
|
---|
| 1612 | $offset += 2;
|
---|
| 1613 | $count = $this->_getLong($data, $base + $offset, $isBigEndian);
|
---|
| 1614 | $offset += 4;
|
---|
| 1615 |
|
---|
| 1616 | if (($type < 1) || ($type > 12))
|
---|
| 1617 | return false; // Unexpected Type
|
---|
| 1618 |
|
---|
| 1619 | $typeLengths = array( -1, 1, 1, 2, 4, 8, 1, 1, 2, 4, 8, 4, 8 );
|
---|
| 1620 |
|
---|
| 1621 | $dataLength = $typeLengths[$type] * $count;
|
---|
| 1622 | if ($dataLength > 4) {
|
---|
| 1623 | $dataOffset = $this->_getLong($data, $base + $offset, $isBigEndian);
|
---|
| 1624 | $rawValue = $this->_getFixedString($data, $base + $dataOffset, $dataLength);
|
---|
| 1625 | } else {
|
---|
| 1626 | $rawValue = $this->_getFixedString($data, $base + $offset, $dataLength);
|
---|
| 1627 | }
|
---|
| 1628 | $offset += 4;
|
---|
| 1629 |
|
---|
| 1630 | switch ($type) {
|
---|
| 1631 | case 1: // UBYTE
|
---|
| 1632 | if ($count == 1) {
|
---|
| 1633 | $value = $this->_getByte($rawValue, 0);
|
---|
| 1634 | } else {
|
---|
| 1635 | $value = array();
|
---|
| 1636 | for ($j = 0; $j < $count; $j++)
|
---|
| 1637 | $value[$j] = $this->_getByte($rawValue, $j);
|
---|
| 1638 | }
|
---|
| 1639 | break;
|
---|
| 1640 | case 2: // ASCII
|
---|
| 1641 | $value = $rawValue;
|
---|
| 1642 | break;
|
---|
| 1643 | case 3: // USHORT
|
---|
| 1644 | if ($count == 1) {
|
---|
| 1645 | $value = $this->_getShort($rawValue, 0, $isBigEndian);
|
---|
| 1646 | } else {
|
---|
| 1647 | $value = array();
|
---|
| 1648 | for ($j = 0; $j < $count; $j++)
|
---|
| 1649 | $value[$j] = $this->_getShort($rawValue, $j * 2, $isBigEndian);
|
---|
| 1650 | }
|
---|
| 1651 | break;
|
---|
| 1652 | case 4: // ULONG
|
---|
| 1653 | if ($count == 1) {
|
---|
| 1654 | $value = $this->_getLong($rawValue, 0, $isBigEndian);
|
---|
| 1655 | } else {
|
---|
| 1656 | $value = array();
|
---|
| 1657 | for ($j = 0; $j < $count; $j++)
|
---|
| 1658 | $value[$j] = $this->_getLong($rawValue, $j * 4, $isBigEndian);
|
---|
| 1659 | }
|
---|
| 1660 | break;
|
---|
| 1661 | case 5: // URATIONAL
|
---|
| 1662 | if ($count == 1) {
|
---|
| 1663 | $a = $this->_getLong($rawValue, 0, $isBigEndian);
|
---|
| 1664 | $b = $this->_getLong($rawValue, 4, $isBigEndian);
|
---|
| 1665 | $value = array();
|
---|
| 1666 | $value['val'] = 0;
|
---|
| 1667 | $value['num'] = $a;
|
---|
| 1668 | $value['den'] = $b;
|
---|
| 1669 | if (($a != 0) && ($b != 0)) {
|
---|
| 1670 | $value['val'] = $a / $b;
|
---|
| 1671 | }
|
---|
| 1672 | } else {
|
---|
| 1673 | $value = array();
|
---|
| 1674 | for ($j = 0; $j < $count; $j++) {
|
---|
| 1675 | $a = $this->_getLong($rawValue, $j * 8, $isBigEndian);
|
---|
| 1676 | $b = $this->_getLong($rawValue, ($j * 8) + 4, $isBigEndian);
|
---|
| 1677 | $value = array();
|
---|
| 1678 | $value[$j]['val'] = 0;
|
---|
| 1679 | $value[$j]['num'] = $a;
|
---|
| 1680 | $value[$j]['den'] = $b;
|
---|
| 1681 | if (($a != 0) && ($b != 0))
|
---|
| 1682 | $value[$j]['val'] = $a / $b;
|
---|
| 1683 | }
|
---|
| 1684 | }
|
---|
| 1685 | break;
|
---|
| 1686 | case 6: // SBYTE
|
---|
| 1687 | if ($count == 1) {
|
---|
| 1688 | $value = $this->_getByte($rawValue, 0);
|
---|
| 1689 | } else {
|
---|
| 1690 | $value = array();
|
---|
| 1691 | for ($j = 0; $j < $count; $j++)
|
---|
| 1692 | $value[$j] = $this->_getByte($rawValue, $j);
|
---|
| 1693 | }
|
---|
| 1694 | break;
|
---|
| 1695 | case 7: // UNDEFINED
|
---|
| 1696 | $value = $rawValue;
|
---|
| 1697 | break;
|
---|
| 1698 | case 8: // SSHORT
|
---|
| 1699 | if ($count == 1) {
|
---|
| 1700 | $value = $this->_getShort($rawValue, 0, $isBigEndian);
|
---|
| 1701 | } else {
|
---|
| 1702 | $value = array();
|
---|
| 1703 | for ($j = 0; $j < $count; $j++)
|
---|
| 1704 | $value[$j] = $this->_getShort($rawValue, $j * 2, $isBigEndian);
|
---|
| 1705 | }
|
---|
| 1706 | break;
|
---|
| 1707 | case 9: // SLONG
|
---|
| 1708 | if ($count == 1) {
|
---|
| 1709 | $value = $this->_getLong($rawValue, 0, $isBigEndian);
|
---|
| 1710 | } else {
|
---|
| 1711 | $value = array();
|
---|
| 1712 | for ($j = 0; $j < $count; $j++)
|
---|
| 1713 | $value[$j] = $this->_getLong($rawValue, $j * 4, $isBigEndian);
|
---|
| 1714 | }
|
---|
| 1715 | break;
|
---|
| 1716 | case 10: // SRATIONAL
|
---|
| 1717 | if ($count == 1) {
|
---|
| 1718 | $a = $this->_getLong($rawValue, 0, $isBigEndian);
|
---|
| 1719 | $b = $this->_getLong($rawValue, 4, $isBigEndian);
|
---|
| 1720 | $value = array();
|
---|
| 1721 | $value['val'] = 0;
|
---|
| 1722 | $value['num'] = $a;
|
---|
| 1723 | $value['den'] = $b;
|
---|
| 1724 | if (($a != 0) && ($b != 0))
|
---|
| 1725 | $value['val'] = $a / $b;
|
---|
| 1726 | } else {
|
---|
| 1727 | $value = array();
|
---|
| 1728 | for ($j = 0; $j < $count; $j++) {
|
---|
| 1729 | $a = $this->_getLong($rawValue, $j * 8, $isBigEndian);
|
---|
| 1730 | $b = $this->_getLong($rawValue, ($j * 8) + 4, $isBigEndian);
|
---|
| 1731 | $value = array();
|
---|
| 1732 | $value[$j]['val'] = 0;
|
---|
| 1733 | $value[$j]['num'] = $a;
|
---|
| 1734 | $value[$j]['den'] = $b;
|
---|
| 1735 | if (($a != 0) && ($b != 0))
|
---|
| 1736 | $value[$j]['val'] = $a / $b;
|
---|
| 1737 | }
|
---|
| 1738 | }
|
---|
| 1739 | break;
|
---|
| 1740 | case 11: // FLOAT
|
---|
| 1741 | $value = $rawValue;
|
---|
| 1742 | break;
|
---|
| 1743 |
|
---|
| 1744 | case 12: // DFLOAT
|
---|
| 1745 | $value = $rawValue;
|
---|
| 1746 | break;
|
---|
| 1747 | default:
|
---|
| 1748 | return false; // Unexpected Type
|
---|
| 1749 | }
|
---|
| 1750 |
|
---|
| 1751 | $tagName = '';
|
---|
| 1752 | if (($mode == 'ifd0') && ($tag == 0x8769)) { // ExifIFDOffset
|
---|
| 1753 | $this->_readIFD($data, $base, $value, $isBigEndian, 'exif');
|
---|
| 1754 | } elseif (($mode == 'ifd0') && ($tag == 0x8825)) { // GPSIFDOffset
|
---|
| 1755 | $this->_readIFD($data, $base, $value, $isBigEndian, 'gps');
|
---|
| 1756 | } elseif (($mode == 'ifd1') && ($tag == 0x0111)) { // TIFFStripOffsets
|
---|
| 1757 | $exifTIFFOffset = $value;
|
---|
| 1758 | } elseif (($mode == 'ifd1') && ($tag == 0x0117)) { // TIFFStripByteCounts
|
---|
| 1759 | $exifTIFFLength = $value;
|
---|
| 1760 | } elseif (($mode == 'ifd1') && ($tag == 0x0201)) { // TIFFJFIFOffset
|
---|
| 1761 | $exifThumbnailOffset = $value;
|
---|
| 1762 | } elseif (($mode == 'ifd1') && ($tag == 0x0202)) { // TIFFJFIFLength
|
---|
| 1763 | $exifThumbnailLength = $value;
|
---|
| 1764 | } elseif (($mode == 'exif') && ($tag == 0xA005)) { // InteropIFDOffset
|
---|
| 1765 | $this->_readIFD($data, $base, $value, $isBigEndian, 'interop');
|
---|
| 1766 | }
|
---|
| 1767 | // elseif (($mode == 'exif') && ($tag == 0x927C)) { // MakerNote
|
---|
| 1768 | // }
|
---|
| 1769 | else {
|
---|
| 1770 | if (isset($EXIFTags[$tag])) {
|
---|
| 1771 | $tagName = $EXIFTags[$tag];
|
---|
| 1772 | if (isset($this->_info['exif'][$tagName])) {
|
---|
| 1773 | if (!is_array($this->_info['exif'][$tagName])) {
|
---|
| 1774 | $aux = array();
|
---|
| 1775 | $aux[0] = $this->_info['exif'][$tagName];
|
---|
| 1776 | $this->_info['exif'][$tagName] = $aux;
|
---|
| 1777 | }
|
---|
| 1778 |
|
---|
| 1779 | $this->_info['exif'][$tagName][count($this->_info['exif'][$tagName])] = $value;
|
---|
| 1780 | } else {
|
---|
| 1781 | $this->_info['exif'][$tagName] = $value;
|
---|
| 1782 | }
|
---|
| 1783 | }
|
---|
| 1784 | /*
|
---|
| 1785 | else {
|
---|
| 1786 | echo sprintf("<h1>Unknown tag %02x (t: %d l: %d) %s in %s</h1>", $tag, $type, $count, $mode, $this->_fileName);
|
---|
| 1787 | // Unknown Tags will be ignored!!!
|
---|
| 1788 | // That's because the tag might be a pointer (like the Exif tag)
|
---|
| 1789 | // and saving it without saving the data it points to might
|
---|
| 1790 | // create an invalid file.
|
---|
| 1791 | }
|
---|
| 1792 | */
|
---|
| 1793 | }
|
---|
| 1794 | }
|
---|
| 1795 |
|
---|
| 1796 | if (($exifThumbnailOffset > 0) && ($exifThumbnailLength > 0)) {
|
---|
| 1797 | $this->_info['exif']['JFIFThumbnail'] = $this->_getFixedString($data, $base + $exifThumbnailOffset, $exifThumbnailLength);
|
---|
| 1798 | }
|
---|
| 1799 |
|
---|
| 1800 | if (($exifTIFFOffset > 0) && ($exifTIFFLength > 0)) {
|
---|
| 1801 | $this->_info['exif']['TIFFStrips'] = $this->_getFixedString($data, $base + $exifTIFFOffset, $exifTIFFLength);
|
---|
| 1802 | }
|
---|
| 1803 |
|
---|
| 1804 | $nextOffset = $this->_getLong($data, $base + $offset, $isBigEndian);
|
---|
| 1805 | return $nextOffset;
|
---|
| 1806 | }
|
---|
| 1807 |
|
---|
| 1808 | /*************************************************************/
|
---|
| 1809 | function & _createMarkerExif() {
|
---|
| 1810 | $data = null;
|
---|
| 1811 | $count = count($this->_markers);
|
---|
| 1812 | for ($i = 0; $i < $count; $i++) {
|
---|
| 1813 | if ($this->_markers[$i]['marker'] == 0xE1) {
|
---|
| 1814 | $signature = $this->_getFixedString($this->_markers[$i]['data'], 0, 6);
|
---|
| 1815 | if ($signature == "Exif\0\0") {
|
---|
| 1816 | $data =& $this->_markers[$i]['data'];
|
---|
| 1817 | break;
|
---|
| 1818 | }
|
---|
| 1819 | }
|
---|
| 1820 | }
|
---|
| 1821 |
|
---|
| 1822 | if (!isset($this->_info['exif'])) {
|
---|
| 1823 | return false;
|
---|
| 1824 | }
|
---|
| 1825 |
|
---|
| 1826 | $data = "Exif\0\0";
|
---|
| 1827 | $pos = 6;
|
---|
| 1828 | $offsetBase = 6;
|
---|
| 1829 |
|
---|
| 1830 | if (isset($this->_info['exif']['ByteAlign']) && ($this->_info['exif']['ByteAlign'] == "Big Endian")) {
|
---|
| 1831 | $isBigEndian = true;
|
---|
| 1832 | $aux = "MM";
|
---|
| 1833 | $pos = $this->_putString($data, $pos, $aux);
|
---|
| 1834 | } else {
|
---|
| 1835 | $isBigEndian = false;
|
---|
| 1836 | $aux = "II";
|
---|
| 1837 | $pos = $this->_putString($data, $pos, $aux);
|
---|
| 1838 | }
|
---|
| 1839 | $pos = $this->_putShort($data, $pos, 0x002A, $isBigEndian);
|
---|
| 1840 | $pos = $this->_putLong($data, $pos, 0x00000008, $isBigEndian); // IFD0 Offset is always 8
|
---|
| 1841 |
|
---|
| 1842 | $ifd0 =& $this->_getIFDEntries($isBigEndian, 'ifd0');
|
---|
| 1843 | $ifd1 =& $this->_getIFDEntries($isBigEndian, 'ifd1');
|
---|
| 1844 |
|
---|
| 1845 | $pos = $this->_writeIFD($data, $pos, $offsetBase, $ifd0, $isBigEndian, true);
|
---|
| 1846 | $pos = $this->_writeIFD($data, $pos, $offsetBase, $ifd1, $isBigEndian, false);
|
---|
| 1847 |
|
---|
| 1848 | return $data;
|
---|
| 1849 | }
|
---|
| 1850 |
|
---|
| 1851 | /*************************************************************/
|
---|
| 1852 | function _writeIFD(&$data, $pos, $offsetBase, &$entries, $isBigEndian, $hasNext) {
|
---|
| 1853 | $tiffData = null;
|
---|
| 1854 | $tiffDataOffsetPos = -1;
|
---|
| 1855 |
|
---|
| 1856 | $entryCount = count($entries);
|
---|
| 1857 |
|
---|
| 1858 | $dataPos = $pos + 2 + ($entryCount * 12) + 4;
|
---|
| 1859 | $pos = $this->_putShort($data, $pos, $entryCount, $isBigEndian);
|
---|
| 1860 |
|
---|
| 1861 | for ($i = 0; $i < $entryCount; $i++) {
|
---|
| 1862 | $tag = $entries[$i]['tag'];
|
---|
| 1863 | $type = $entries[$i]['type'];
|
---|
| 1864 |
|
---|
| 1865 | if ($type == -99) { // SubIFD
|
---|
| 1866 | $pos = $this->_putShort($data, $pos, $tag, $isBigEndian);
|
---|
| 1867 | $pos = $this->_putShort($data, $pos, 0x04, $isBigEndian); // LONG
|
---|
| 1868 | $pos = $this->_putLong($data, $pos, 0x01, $isBigEndian); // Count = 1
|
---|
| 1869 | $pos = $this->_putLong($data, $pos, $dataPos - $offsetBase, $isBigEndian);
|
---|
| 1870 |
|
---|
| 1871 | $dataPos = $this->_writeIFD($data, $dataPos, $offsetBase, $entries[$i]['value'], $isBigEndian, false);
|
---|
| 1872 | } elseif ($type == -98) { // TIFF Data
|
---|
| 1873 | $pos = $this->_putShort($data, $pos, $tag, $isBigEndian);
|
---|
| 1874 | $pos = $this->_putShort($data, $pos, 0x04, $isBigEndian); // LONG
|
---|
| 1875 | $pos = $this->_putLong($data, $pos, 0x01, $isBigEndian); // Count = 1
|
---|
| 1876 | $tiffDataOffsetPos = $pos;
|
---|
| 1877 | $pos = $this->_putLong($data, $pos, 0x00, $isBigEndian); // For Now
|
---|
| 1878 | $tiffData =& $entries[$i]['value'] ;
|
---|
| 1879 | } else { // Regular Entry
|
---|
| 1880 | $pos = $this->_putShort($data, $pos, $tag, $isBigEndian);
|
---|
| 1881 | $pos = $this->_putShort($data, $pos, $type, $isBigEndian);
|
---|
| 1882 | $pos = $this->_putLong($data, $pos, $entries[$i]['count'], $isBigEndian);
|
---|
| 1883 | if (strlen($entries[$i]['value']) > 4) {
|
---|
| 1884 | $pos = $this->_putLong($data, $pos, $dataPos - $offsetBase, $isBigEndian);
|
---|
| 1885 | $dataPos = $this->_putString($data, $dataPos, $entries[$i]['value']);
|
---|
| 1886 | } else {
|
---|
| 1887 | $val = str_pad($entries[$i]['value'], 4, "\0");
|
---|
| 1888 | $pos = $this->_putString($data, $pos, $val);
|
---|
| 1889 | }
|
---|
| 1890 | }
|
---|
| 1891 | }
|
---|
| 1892 |
|
---|
| 1893 | if ($tiffData != null) {
|
---|
| 1894 | $this->_putLong($data, $tiffDataOffsetPos, $dataPos - $offsetBase, $isBigEndian);
|
---|
| 1895 | $dataPos = $this->_putString($data, $dataPos, $tiffData);
|
---|
| 1896 | }
|
---|
| 1897 |
|
---|
| 1898 | if ($hasNext) {
|
---|
| 1899 | $pos = $this->_putLong($data, $pos, $dataPos - $offsetBase, $isBigEndian);
|
---|
| 1900 | } else {
|
---|
| 1901 | $pos = $this->_putLong($data, $pos, 0, $isBigEndian);
|
---|
| 1902 | }
|
---|
| 1903 |
|
---|
| 1904 | return $dataPos;
|
---|
| 1905 | }
|
---|
| 1906 |
|
---|
| 1907 | /*************************************************************/
|
---|
| 1908 | function & _getIFDEntries($isBigEndian, $mode) {
|
---|
| 1909 | $EXIFNames = $this->_exifTagNames($mode);
|
---|
| 1910 | $EXIFTags = $this->_exifNameTags($mode);
|
---|
| 1911 | $EXIFTypeInfo = $this->_exifTagTypes($mode);
|
---|
| 1912 |
|
---|
| 1913 | $ifdEntries = array();
|
---|
| 1914 | $entryCount = 0;
|
---|
| 1915 |
|
---|
| 1916 | reset($EXIFNames);
|
---|
| 1917 | while (list($tag, $name) = each($EXIFNames)) {
|
---|
| 1918 | $type = $EXIFTypeInfo[$tag][0];
|
---|
| 1919 | $count = $EXIFTypeInfo[$tag][1];
|
---|
| 1920 | $value = null;
|
---|
| 1921 |
|
---|
| 1922 | if (($mode == 'ifd0') && ($tag == 0x8769)) { // ExifIFDOffset
|
---|
| 1923 | if (isset($this->_info['exif']['EXIFVersion'])) {
|
---|
| 1924 | $value =& $this->_getIFDEntries($isBigEndian, "exif");
|
---|
| 1925 | $type = -99;
|
---|
| 1926 | }
|
---|
| 1927 | else {
|
---|
| 1928 | $value = null;
|
---|
| 1929 | }
|
---|
| 1930 | } elseif (($mode == 'ifd0') && ($tag == 0x8825)) { // GPSIFDOffset
|
---|
| 1931 | if (isset($this->_info['exif']['GPSVersionID'])) {
|
---|
| 1932 | $value =& $this->_getIFDEntries($isBigEndian, "gps");
|
---|
| 1933 | $type = -99;
|
---|
| 1934 | } else {
|
---|
| 1935 | $value = null;
|
---|
| 1936 | }
|
---|
| 1937 | } elseif (($mode == 'ifd1') && ($tag == 0x0111)) { // TIFFStripOffsets
|
---|
| 1938 | if (isset($this->_info['exif']['TIFFStrips'])) {
|
---|
| 1939 | $value =& $this->_info['exif']['TIFFStrips'];
|
---|
| 1940 | $type = -98;
|
---|
| 1941 | } else {
|
---|
| 1942 | $value = null;
|
---|
| 1943 | }
|
---|
| 1944 | } elseif (($mode == 'ifd1') && ($tag == 0x0117)) { // TIFFStripByteCounts
|
---|
| 1945 | if (isset($this->_info['exif']['TIFFStrips'])) {
|
---|
| 1946 | $value = strlen($this->_info['exif']['TIFFStrips']);
|
---|
| 1947 | } else {
|
---|
| 1948 | $value = null;
|
---|
| 1949 | }
|
---|
| 1950 | } elseif (($mode == 'ifd1') && ($tag == 0x0201)) { // TIFFJFIFOffset
|
---|
| 1951 | if (isset($this->_info['exif']['JFIFThumbnail'])) {
|
---|
| 1952 | $value =& $this->_info['exif']['JFIFThumbnail'];
|
---|
| 1953 | $type = -98;
|
---|
| 1954 | } else {
|
---|
| 1955 | $value = null;
|
---|
| 1956 | }
|
---|
| 1957 | } elseif (($mode == 'ifd1') && ($tag == 0x0202)) { // TIFFJFIFLength
|
---|
| 1958 | if (isset($this->_info['exif']['JFIFThumbnail'])) {
|
---|
| 1959 | $value = strlen($this->_info['exif']['JFIFThumbnail']);
|
---|
| 1960 | } else {
|
---|
| 1961 | $value = null;
|
---|
| 1962 | }
|
---|
| 1963 | } elseif (($mode == 'exif') && ($tag == 0xA005)) { // InteropIFDOffset
|
---|
| 1964 | if (isset($this->_info['exif']['InteroperabilityIndex'])) {
|
---|
| 1965 | $value =& $this->_getIFDEntries($isBigEndian, "interop");
|
---|
| 1966 | $type = -99;
|
---|
| 1967 | } else {
|
---|
| 1968 | $value = null;
|
---|
| 1969 | }
|
---|
| 1970 | } elseif (isset($this->_info['exif'][$name])) {
|
---|
| 1971 | $origValue =& $this->_info['exif'][$name];
|
---|
| 1972 |
|
---|
| 1973 | // This makes it easier to process variable size elements
|
---|
| 1974 | if (!is_array($origValue) || isset($origValue['val'])) {
|
---|
| 1975 | unset($origValue); // Break the reference
|
---|
| 1976 | $origValue = array($this->_info['exif'][$name]);
|
---|
| 1977 | }
|
---|
| 1978 | $origCount = count($origValue);
|
---|
| 1979 |
|
---|
| 1980 | if ($origCount == 0 ) {
|
---|
| 1981 | $type = -1; // To ignore this field
|
---|
| 1982 | }
|
---|
| 1983 |
|
---|
| 1984 | $value = " ";
|
---|
| 1985 |
|
---|
| 1986 | switch ($type) {
|
---|
| 1987 | case 1: // UBYTE
|
---|
| 1988 | if ($count == 0) {
|
---|
| 1989 | $count = $origCount;
|
---|
| 1990 | }
|
---|
| 1991 |
|
---|
| 1992 | $j = 0;
|
---|
| 1993 | while (($j < $count) && ($j < $origCount)) {
|
---|
| 1994 |
|
---|
| 1995 | $this->_putByte($value, $j, $origValue[$j]);
|
---|
| 1996 | $j++;
|
---|
| 1997 | }
|
---|
| 1998 |
|
---|
| 1999 | while ($j < $count) {
|
---|
| 2000 | $this->_putByte($value, $j, 0);
|
---|
| 2001 | $j++;
|
---|
| 2002 | }
|
---|
| 2003 | break;
|
---|
| 2004 | case 2: // ASCII
|
---|
| 2005 | $v = strval($origValue[0]);
|
---|
| 2006 | if (($count != 0) && (strlen($v) > $count)) {
|
---|
| 2007 | $v = substr($v, 0, $count);
|
---|
| 2008 | }
|
---|
| 2009 | elseif (($count > 0) && (strlen($v) < $count)) {
|
---|
| 2010 | $v = str_pad($v, $count, "\0");
|
---|
| 2011 | }
|
---|
| 2012 |
|
---|
| 2013 | $count = strlen($v);
|
---|
| 2014 |
|
---|
| 2015 | $this->_putString($value, 0, $v);
|
---|
| 2016 | break;
|
---|
| 2017 | case 3: // USHORT
|
---|
| 2018 | if ($count == 0) {
|
---|
| 2019 | $count = $origCount;
|
---|
| 2020 | }
|
---|
| 2021 |
|
---|
| 2022 | $j = 0;
|
---|
| 2023 | while (($j < $count) && ($j < $origCount)) {
|
---|
| 2024 | $this->_putShort($value, $j * 2, $origValue[$j], $isBigEndian);
|
---|
| 2025 | $j++;
|
---|
| 2026 | }
|
---|
| 2027 |
|
---|
| 2028 | while ($j < $count) {
|
---|
| 2029 | $this->_putShort($value, $j * 2, 0, $isBigEndian);
|
---|
| 2030 | $j++;
|
---|
| 2031 | }
|
---|
| 2032 | break;
|
---|
| 2033 | case 4: // ULONG
|
---|
| 2034 | if ($count == 0) {
|
---|
| 2035 | $count = $origCount;
|
---|
| 2036 | }
|
---|
| 2037 |
|
---|
| 2038 | $j = 0;
|
---|
| 2039 | while (($j < $count) && ($j < $origCount)) {
|
---|
| 2040 | $this->_putLong($value, $j * 4, $origValue[$j], $isBigEndian);
|
---|
| 2041 | $j++;
|
---|
| 2042 | }
|
---|
| 2043 |
|
---|
| 2044 | while ($j < $count) {
|
---|
| 2045 | $this->_putLong($value, $j * 4, 0, $isBigEndian);
|
---|
| 2046 | $j++;
|
---|
| 2047 | }
|
---|
| 2048 | break;
|
---|
| 2049 | case 5: // URATIONAL
|
---|
| 2050 | if ($count == 0) {
|
---|
| 2051 | $count = $origCount;
|
---|
| 2052 | }
|
---|
| 2053 |
|
---|
| 2054 | $j = 0;
|
---|
| 2055 | while (($j < $count) && ($j < $origCount)) {
|
---|
| 2056 | $v = $origValue[$j];
|
---|
| 2057 | if (is_array($v)) {
|
---|
| 2058 | $a = $v['num'];
|
---|
| 2059 | $b = $v['den'];
|
---|
| 2060 | }
|
---|
| 2061 | else {
|
---|
| 2062 | $a = 0;
|
---|
| 2063 | $b = 0;
|
---|
| 2064 | // TODO: Allow other types and convert them
|
---|
| 2065 | }
|
---|
| 2066 | $this->_putLong($value, $j * 8, $a, $isBigEndian);
|
---|
| 2067 | $this->_putLong($value, ($j * 8) + 4, $b, $isBigEndian);
|
---|
| 2068 | $j++;
|
---|
| 2069 | }
|
---|
| 2070 |
|
---|
| 2071 | while ($j < $count) {
|
---|
| 2072 | $this->_putLong($value, $j * 8, 0, $isBigEndian);
|
---|
| 2073 | $this->_putLong($value, ($j * 8) + 4, 0, $isBigEndian);
|
---|
| 2074 | $j++;
|
---|
| 2075 | }
|
---|
| 2076 | break;
|
---|
| 2077 | case 6: // SBYTE
|
---|
| 2078 | if ($count == 0) {
|
---|
| 2079 | $count = $origCount;
|
---|
| 2080 | }
|
---|
| 2081 |
|
---|
| 2082 | $j = 0;
|
---|
| 2083 | while (($j < $count) && ($j < $origCount)) {
|
---|
| 2084 | $this->_putByte($value, $j, $origValue[$j]);
|
---|
| 2085 | $j++;
|
---|
| 2086 | }
|
---|
| 2087 |
|
---|
| 2088 | while ($j < $count) {
|
---|
| 2089 | $this->_putByte($value, $j, 0);
|
---|
| 2090 | $j++;
|
---|
| 2091 | }
|
---|
| 2092 | break;
|
---|
| 2093 | case 7: // UNDEFINED
|
---|
| 2094 | $v = strval($origValue[0]);
|
---|
| 2095 | if (($count != 0) && (strlen($v) > $count)) {
|
---|
| 2096 | $v = substr($v, 0, $count);
|
---|
| 2097 | }
|
---|
| 2098 | elseif (($count > 0) && (strlen($v) < $count)) {
|
---|
| 2099 | $v = str_pad($v, $count, "\0");
|
---|
| 2100 | }
|
---|
| 2101 |
|
---|
| 2102 | $count = strlen($v);
|
---|
| 2103 |
|
---|
| 2104 | $this->_putString($value, 0, $v);
|
---|
| 2105 | break;
|
---|
| 2106 | case 8: // SSHORT
|
---|
| 2107 | if ($count == 0) {
|
---|
| 2108 | $count = $origCount;
|
---|
| 2109 | }
|
---|
| 2110 |
|
---|
| 2111 | $j = 0;
|
---|
| 2112 | while (($j < $count) && ($j < $origCount)) {
|
---|
| 2113 | $this->_putShort($value, $j * 2, $origValue[$j], $isBigEndian);
|
---|
| 2114 | $j++;
|
---|
| 2115 | }
|
---|
| 2116 |
|
---|
| 2117 | while ($j < $count) {
|
---|
| 2118 | $this->_putShort($value, $j * 2, 0, $isBigEndian);
|
---|
| 2119 | $j++;
|
---|
| 2120 | }
|
---|
| 2121 | break;
|
---|
| 2122 | case 9: // SLONG
|
---|
| 2123 | if ($count == 0) {
|
---|
| 2124 | $count = $origCount;
|
---|
| 2125 | }
|
---|
| 2126 |
|
---|
| 2127 | $j = 0;
|
---|
| 2128 | while (($j < $count) && ($j < $origCount)) {
|
---|
| 2129 | $this->_putLong($value, $j * 4, $origValue[$j], $isBigEndian);
|
---|
| 2130 | $j++;
|
---|
| 2131 | }
|
---|
| 2132 |
|
---|
| 2133 | while ($j < $count) {
|
---|
| 2134 | $this->_putLong($value, $j * 4, 0, $isBigEndian);
|
---|
| 2135 | $j++;
|
---|
| 2136 | }
|
---|
| 2137 | break;
|
---|
| 2138 | case 10: // SRATIONAL
|
---|
| 2139 | if ($count == 0) {
|
---|
| 2140 | $count = $origCount;
|
---|
| 2141 | }
|
---|
| 2142 |
|
---|
| 2143 | $j = 0;
|
---|
| 2144 | while (($j < $count) && ($j < $origCount)) {
|
---|
| 2145 | $v = $origValue[$j];
|
---|
| 2146 | if (is_array($v)) {
|
---|
| 2147 | $a = $v['num'];
|
---|
| 2148 | $b = $v['den'];
|
---|
| 2149 | }
|
---|
| 2150 | else {
|
---|
| 2151 | $a = 0;
|
---|
| 2152 | $b = 0;
|
---|
| 2153 | // TODO: Allow other types and convert them
|
---|
| 2154 | }
|
---|
| 2155 |
|
---|
| 2156 | $this->_putLong($value, $j * 8, $a, $isBigEndian);
|
---|
| 2157 | $this->_putLong($value, ($j * 8) + 4, $b, $isBigEndian);
|
---|
| 2158 | $j++;
|
---|
| 2159 | }
|
---|
| 2160 |
|
---|
| 2161 | while ($j < $count) {
|
---|
| 2162 | $this->_putLong($value, $j * 8, 0, $isBigEndian);
|
---|
| 2163 | $this->_putLong($value, ($j * 8) + 4, 0, $isBigEndian);
|
---|
| 2164 | $j++;
|
---|
| 2165 | }
|
---|
| 2166 | break;
|
---|
| 2167 | case 11: // FLOAT
|
---|
| 2168 | if ($count == 0) {
|
---|
| 2169 | $count = $origCount;
|
---|
| 2170 | }
|
---|
| 2171 |
|
---|
| 2172 | $j = 0;
|
---|
| 2173 | while (($j < $count) && ($j < $origCount)) {
|
---|
| 2174 | $v = strval($origValue[$j]);
|
---|
| 2175 | if (strlen($v) > 4) {
|
---|
| 2176 | $v = substr($v, 0, 4);
|
---|
| 2177 | }
|
---|
| 2178 | elseif (strlen($v) < 4) {
|
---|
| 2179 | $v = str_pad($v, 4, "\0");
|
---|
| 2180 | }
|
---|
| 2181 | $this->_putString($value, $j * 4, $v);
|
---|
| 2182 | $j++;
|
---|
| 2183 | }
|
---|
| 2184 |
|
---|
| 2185 | while ($j < $count) {
|
---|
| 2186 | $this->_putString($value, $j * 4, "\0\0\0\0");
|
---|
| 2187 | $j++;
|
---|
| 2188 | }
|
---|
| 2189 | break;
|
---|
| 2190 | case 12: // DFLOAT
|
---|
| 2191 | if ($count == 0) {
|
---|
| 2192 | $count = $origCount;
|
---|
| 2193 | }
|
---|
| 2194 |
|
---|
| 2195 | $j = 0;
|
---|
| 2196 | while (($j < $count) && ($j < $origCount)) {
|
---|
| 2197 | $v = strval($origValue[$j]);
|
---|
| 2198 | if (strlen($v) > 8) {
|
---|
| 2199 | $v = substr($v, 0, 8);
|
---|
| 2200 | }
|
---|
| 2201 | elseif (strlen($v) < 8) {
|
---|
| 2202 | $v = str_pad($v, 8, "\0");
|
---|
| 2203 | }
|
---|
| 2204 | $this->_putString($value, $j * 8, $v);
|
---|
| 2205 | $j++;
|
---|
| 2206 | }
|
---|
| 2207 |
|
---|
| 2208 | while ($j < $count) {
|
---|
| 2209 | $this->_putString($value, $j * 8, "\0\0\0\0\0\0\0\0");
|
---|
| 2210 | $j++;
|
---|
| 2211 | }
|
---|
| 2212 | break;
|
---|
| 2213 | default:
|
---|
| 2214 | $value = null;
|
---|
| 2215 | break;
|
---|
| 2216 | }
|
---|
| 2217 | }
|
---|
| 2218 |
|
---|
| 2219 | if ($value != null) {
|
---|
| 2220 | $ifdEntries[$entryCount] = array();
|
---|
| 2221 | $ifdEntries[$entryCount]['tag'] = $tag;
|
---|
| 2222 | $ifdEntries[$entryCount]['type'] = $type;
|
---|
| 2223 | $ifdEntries[$entryCount]['count'] = $count;
|
---|
| 2224 | $ifdEntries[$entryCount]['value'] = $value;
|
---|
| 2225 |
|
---|
| 2226 | $entryCount++;
|
---|
| 2227 | }
|
---|
| 2228 | }
|
---|
| 2229 |
|
---|
| 2230 | return $ifdEntries;
|
---|
| 2231 | }
|
---|
| 2232 |
|
---|
| 2233 | /*************************************************************/
|
---|
| 2234 | function _parseMarkerAdobe() {
|
---|
| 2235 | if (!isset($this->_markers)) {
|
---|
| 2236 | $this->_readJPEG();
|
---|
| 2237 | }
|
---|
| 2238 |
|
---|
| 2239 | if ($this->_markers == null) {
|
---|
| 2240 | return false;
|
---|
| 2241 | }
|
---|
| 2242 |
|
---|
| 2243 | $data = null;
|
---|
| 2244 | $count = count($this->_markers);
|
---|
| 2245 | for ($i = 0; $i < $count; $i++) {
|
---|
| 2246 | if ($this->_markers[$i]['marker'] == 0xED) {
|
---|
| 2247 | $signature = $this->_getFixedString($this->_markers[$i]['data'], 0, 14);
|
---|
| 2248 | if ($signature == "Photoshop 3.0\0") {
|
---|
| 2249 | $data =& $this->_markers[$i]['data'];
|
---|
| 2250 | break;
|
---|
| 2251 | }
|
---|
| 2252 | }
|
---|
| 2253 | }
|
---|
| 2254 |
|
---|
| 2255 | if ($data == null) {
|
---|
| 2256 | $this->_info['adobe'] = false;
|
---|
| 2257 | $this->_info['iptc'] = false;
|
---|
| 2258 | return false;
|
---|
| 2259 | }
|
---|
| 2260 | $pos = 14;
|
---|
| 2261 | $this->_info['adobe'] = array();
|
---|
| 2262 | $this->_info['adobe']['raw'] = array();
|
---|
| 2263 | $this->_info['iptc'] = array();
|
---|
| 2264 |
|
---|
| 2265 | $datasize = strlen($data);
|
---|
| 2266 |
|
---|
| 2267 | while ($pos < $datasize) {
|
---|
| 2268 | $signature = $this->_getFixedString($data, $pos, 4);
|
---|
| 2269 | if ($signature != '8BIM')
|
---|
| 2270 | return false;
|
---|
| 2271 | $pos += 4;
|
---|
| 2272 |
|
---|
| 2273 | $type = $this->_getShort($data, $pos);
|
---|
| 2274 | $pos += 2;
|
---|
| 2275 |
|
---|
| 2276 | $strlen = $this->_getByte($data, $pos);
|
---|
| 2277 | $pos += 1;
|
---|
| 2278 | $header = '';
|
---|
| 2279 | for ($i = 0; $i < $strlen; $i++) {
|
---|
| 2280 | $header .= $data{$pos + $i};
|
---|
| 2281 | }
|
---|
| 2282 | $pos += $strlen + 1 - ($strlen % 2); // The string is padded to even length, counting the length byte itself
|
---|
| 2283 |
|
---|
| 2284 | $length = $this->_getLong($data, $pos);
|
---|
| 2285 | $pos += 4;
|
---|
| 2286 |
|
---|
| 2287 | $basePos = $pos;
|
---|
| 2288 |
|
---|
| 2289 | switch ($type) {
|
---|
| 2290 | case 0x0404: // Caption (IPTC Data)
|
---|
| 2291 | $pos = $this->_readIPTC($data, $pos);
|
---|
| 2292 | if ($pos == false)
|
---|
| 2293 | return false;
|
---|
| 2294 | break;
|
---|
| 2295 | case 0x040A: // CopyrightFlag
|
---|
| 2296 | $this->_info['adobe']['CopyrightFlag'] = $this->_getByte($data, $pos);
|
---|
| 2297 | $pos += $length;
|
---|
| 2298 | break;
|
---|
| 2299 | case 0x040B: // ImageURL
|
---|
| 2300 | $this->_info['adobe']['ImageURL'] = $this->_getFixedString($data, $pos, $length);
|
---|
| 2301 | $pos += $length;
|
---|
| 2302 | break;
|
---|
| 2303 | case 0x040C: // Thumbnail
|
---|
| 2304 | $aux = $this->_getLong($data, $pos);
|
---|
| 2305 | $pos += 4;
|
---|
| 2306 | if ($aux == 1) {
|
---|
| 2307 | $this->_info['adobe']['ThumbnailWidth'] = $this->_getLong($data, $pos);
|
---|
| 2308 | $pos += 4;
|
---|
| 2309 | $this->_info['adobe']['ThumbnailHeight'] = $this->_getLong($data, $pos);
|
---|
| 2310 | $pos += 4;
|
---|
| 2311 |
|
---|
| 2312 | $pos += 16; // Skip some data
|
---|
| 2313 |
|
---|
| 2314 | $this->_info['adobe']['ThumbnailData'] = $this->_getFixedString($data, $pos, $length - 28);
|
---|
| 2315 | $pos += $length - 28;
|
---|
| 2316 | }
|
---|
| 2317 | break;
|
---|
| 2318 | default:
|
---|
| 2319 | break;
|
---|
| 2320 | }
|
---|
| 2321 |
|
---|
| 2322 | // We save all blocks, even those we recognized
|
---|
| 2323 | $label = sprintf('8BIM_0x%04x', $type);
|
---|
| 2324 | $this->_info['adobe']['raw'][$label] = array();
|
---|
| 2325 | $this->_info['adobe']['raw'][$label]['type'] = $type;
|
---|
| 2326 | $this->_info['adobe']['raw'][$label]['header'] = $header;
|
---|
| 2327 | $this->_info['adobe']['raw'][$label]['data'] =& $this->_getFixedString($data, $basePos, $length);
|
---|
| 2328 |
|
---|
| 2329 | $pos = $basePos + $length + ($length % 2); // Even padding
|
---|
| 2330 | }
|
---|
| 2331 |
|
---|
| 2332 | }
|
---|
| 2333 |
|
---|
| 2334 | /*************************************************************/
|
---|
| 2335 | function _readIPTC(&$data, $pos = 0) {
|
---|
| 2336 | $totalLength = strlen($data);
|
---|
| 2337 |
|
---|
| 2338 | $IPTCTags =& $this->_iptcTagNames();
|
---|
| 2339 |
|
---|
| 2340 | while ($pos < ($totalLength - 5)) {
|
---|
| 2341 | $signature = $this->_getShort($data, $pos);
|
---|
| 2342 | if ($signature != 0x1C02)
|
---|
| 2343 | return $pos;
|
---|
| 2344 | $pos += 2;
|
---|
| 2345 |
|
---|
| 2346 | $type = $this->_getByte($data, $pos);
|
---|
| 2347 | $pos += 1;
|
---|
| 2348 | $length = $this->_getShort($data, $pos);
|
---|
| 2349 | $pos += 2;
|
---|
| 2350 |
|
---|
| 2351 | $basePos = $pos;
|
---|
| 2352 | $label = '';
|
---|
| 2353 |
|
---|
| 2354 | if (isset($IPTCTags[$type])) {
|
---|
| 2355 | $label = $IPTCTags[$type];
|
---|
| 2356 | } else {
|
---|
| 2357 | $label = sprintf('IPTC_0x%02x', $type);
|
---|
| 2358 | }
|
---|
| 2359 |
|
---|
| 2360 | if ($label != '') {
|
---|
| 2361 | if (isset($this->_info['iptc'][$label])) {
|
---|
| 2362 | if (!is_array($this->_info['iptc'][$label])) {
|
---|
| 2363 | $aux = array();
|
---|
| 2364 | $aux[0] = $this->_info['iptc'][$label];
|
---|
| 2365 | $this->_info['iptc'][$label] = $aux;
|
---|
| 2366 | }
|
---|
| 2367 | $this->_info['iptc'][$label][ count($this->_info['iptc'][$label]) ] = $this->_getFixedString($data, $pos, $length);
|
---|
| 2368 | } else {
|
---|
| 2369 | $this->_info['iptc'][$label] = $this->_getFixedString($data, $pos, $length);
|
---|
| 2370 | }
|
---|
| 2371 | }
|
---|
| 2372 |
|
---|
| 2373 | $pos = $basePos + $length; // No padding
|
---|
| 2374 | }
|
---|
| 2375 | return $pos;
|
---|
| 2376 | }
|
---|
| 2377 |
|
---|
| 2378 | /*************************************************************/
|
---|
| 2379 | function & _createMarkerAdobe() {
|
---|
| 2380 | if (isset($this->_info['iptc'])) {
|
---|
| 2381 | if (!isset($this->_info['adobe'])) {
|
---|
| 2382 | $this->_info['adobe'] = array();
|
---|
| 2383 | }
|
---|
| 2384 | if (!isset($this->_info['adobe']['raw'])) {
|
---|
| 2385 | $this->_info['adobe']['raw'] = array();
|
---|
| 2386 | }
|
---|
| 2387 | if (!isset($this->_info['adobe']['raw']['8BIM_0x0404'])) {
|
---|
| 2388 | $this->_info['adobe']['raw']['8BIM_0x0404'] = array();
|
---|
| 2389 | }
|
---|
| 2390 | $this->_info['adobe']['raw']['8BIM_0x0404']['type'] = 0x0404;
|
---|
| 2391 | $this->_info['adobe']['raw']['8BIM_0x0404']['header'] = "Caption";
|
---|
| 2392 | $this->_info['adobe']['raw']['8BIM_0x0404']['data'] =& $this->_writeIPTC();
|
---|
| 2393 | }
|
---|
| 2394 |
|
---|
| 2395 | if (isset($this->_info['adobe']['raw']) && (count($this->_info['adobe']['raw']) > 0)) {
|
---|
| 2396 | $data = "Photoshop 3.0\0";
|
---|
| 2397 | $pos = 14;
|
---|
| 2398 |
|
---|
| 2399 | reset($this->_info['adobe']['raw']);
|
---|
| 2400 | while (list($key) = each($this->_info['adobe']['raw'])) {
|
---|
| 2401 | $pos = $this->_write8BIM(
|
---|
| 2402 | $data,
|
---|
| 2403 | $pos,
|
---|
| 2404 | $this->_info['adobe']['raw'][$key]['type'],
|
---|
| 2405 | $this->_info['adobe']['raw'][$key]['header'],
|
---|
| 2406 | $this->_info['adobe']['raw'][$key]['data'] );
|
---|
| 2407 | }
|
---|
| 2408 | }
|
---|
| 2409 |
|
---|
| 2410 | return $data;
|
---|
| 2411 | }
|
---|
| 2412 |
|
---|
| 2413 | /*************************************************************/
|
---|
| 2414 | function _write8BIM(&$data, $pos, $type, $header, &$value) {
|
---|
| 2415 | $signature = "8BIM";
|
---|
| 2416 |
|
---|
| 2417 | $pos = $this->_putString($data, $pos, $signature);
|
---|
| 2418 | $pos = $this->_putShort($data, $pos, $type);
|
---|
| 2419 |
|
---|
| 2420 | $len = strlen($header);
|
---|
| 2421 |
|
---|
| 2422 | $pos = $this->_putByte($data, $pos, $len);
|
---|
| 2423 | $pos = $this->_putString($data, $pos, $header);
|
---|
| 2424 | if (($len % 2) == 0) { // Even padding, including the length byte
|
---|
| 2425 | $pos = $this->_putByte($data, $pos, 0);
|
---|
| 2426 | }
|
---|
| 2427 |
|
---|
| 2428 | $len = strlen($value);
|
---|
| 2429 | $pos = $this->_putLong($data, $pos, $len);
|
---|
| 2430 | $pos = $this->_putString($data, $pos, $value);
|
---|
| 2431 | if (($len % 2) != 0) { // Even padding
|
---|
| 2432 | $pos = $this->_putByte($data, $pos, 0);
|
---|
| 2433 | }
|
---|
| 2434 | return $pos;
|
---|
| 2435 | }
|
---|
| 2436 |
|
---|
| 2437 | /*************************************************************/
|
---|
| 2438 | function & _writeIPTC() {
|
---|
| 2439 | $data = " ";
|
---|
| 2440 | $pos = 0;
|
---|
| 2441 |
|
---|
| 2442 | $IPTCNames =& $this->_iptcNameTags();
|
---|
| 2443 |
|
---|
| 2444 | reset($this->_info['iptc']);
|
---|
| 2445 |
|
---|
| 2446 | while (list($label) = each($this->_info['iptc'])) {
|
---|
| 2447 | $value =& $this->_info['iptc'][$label];
|
---|
| 2448 | $type = -1;
|
---|
| 2449 |
|
---|
| 2450 | if (isset($IPTCNames[$label])) {
|
---|
| 2451 | $type = $IPTCNames[$label];
|
---|
| 2452 | }
|
---|
| 2453 | elseif (substr($label, 0, 7) == "IPTC_0x") {
|
---|
| 2454 | $type = hexdec(substr($label, 7, 2));
|
---|
| 2455 | }
|
---|
| 2456 |
|
---|
| 2457 | if ($type != -1) {
|
---|
| 2458 | if (is_array($value)) {
|
---|
| 2459 | $vcnt = count($value);
|
---|
| 2460 | for ($i = 0; $i < $vcnt; $i++) {
|
---|
| 2461 | $pos = $this->_writeIPTCEntry($data, $pos, $type, $value[$i]);
|
---|
| 2462 | }
|
---|
| 2463 | }
|
---|
| 2464 | else {
|
---|
| 2465 | $pos = $this->_writeIPTCEntry($data, $pos, $type, $value);
|
---|
| 2466 | }
|
---|
| 2467 | }
|
---|
| 2468 | }
|
---|
| 2469 |
|
---|
| 2470 | return $data;
|
---|
| 2471 | }
|
---|
| 2472 |
|
---|
| 2473 | /*************************************************************/
|
---|
| 2474 | function _writeIPTCEntry(&$data, $pos, $type, &$value) {
|
---|
| 2475 | $pos = $this->_putShort($data, $pos, 0x1C02);
|
---|
| 2476 | $pos = $this->_putByte($data, $pos, $type);
|
---|
| 2477 | $pos = $this->_putShort($data, $pos, strlen($value));
|
---|
| 2478 | $pos = $this->_putString($data, $pos, $value);
|
---|
| 2479 |
|
---|
| 2480 | return $pos;
|
---|
| 2481 | }
|
---|
| 2482 |
|
---|
| 2483 | /*************************************************************/
|
---|
| 2484 | function _exifTagNames($mode) {
|
---|
| 2485 | $tags = array();
|
---|
| 2486 |
|
---|
| 2487 | if ($mode == 'ifd0') {
|
---|
| 2488 | $tags[0x010E] = 'ImageDescription';
|
---|
| 2489 | $tags[0x010F] = 'Make';
|
---|
| 2490 | $tags[0x0110] = 'Model';
|
---|
| 2491 | $tags[0x0112] = 'Orientation';
|
---|
| 2492 | $tags[0x011A] = 'XResolution';
|
---|
| 2493 | $tags[0x011B] = 'YResolution';
|
---|
| 2494 | $tags[0x0128] = 'ResolutionUnit';
|
---|
| 2495 | $tags[0x0131] = 'Software';
|
---|
| 2496 | $tags[0x0132] = 'DateTime';
|
---|
| 2497 | $tags[0x013B] = 'Artist';
|
---|
| 2498 | $tags[0x013E] = 'WhitePoint';
|
---|
| 2499 | $tags[0x013F] = 'PrimaryChromaticities';
|
---|
| 2500 | $tags[0x0211] = 'YCbCrCoefficients';
|
---|
| 2501 | $tags[0x0212] = 'YCbCrSubSampling';
|
---|
| 2502 | $tags[0x0213] = 'YCbCrPositioning';
|
---|
| 2503 | $tags[0x0214] = 'ReferenceBlackWhite';
|
---|
| 2504 | $tags[0x8298] = 'Copyright';
|
---|
| 2505 | $tags[0x8769] = 'ExifIFDOffset';
|
---|
| 2506 | $tags[0x8825] = 'GPSIFDOffset';
|
---|
| 2507 | }
|
---|
| 2508 | if ($mode == 'ifd1') {
|
---|
| 2509 | $tags[0x00FE] = 'TIFFNewSubfileType';
|
---|
| 2510 | $tags[0x00FF] = 'TIFFSubfileType';
|
---|
| 2511 | $tags[0x0100] = 'TIFFImageWidth';
|
---|
| 2512 | $tags[0x0101] = 'TIFFImageHeight';
|
---|
| 2513 | $tags[0x0102] = 'TIFFBitsPerSample';
|
---|
| 2514 | $tags[0x0103] = 'TIFFCompression';
|
---|
| 2515 | $tags[0x0106] = 'TIFFPhotometricInterpretation';
|
---|
| 2516 | $tags[0x0107] = 'TIFFThreshholding';
|
---|
| 2517 | $tags[0x0108] = 'TIFFCellWidth';
|
---|
| 2518 | $tags[0x0109] = 'TIFFCellLength';
|
---|
| 2519 | $tags[0x010A] = 'TIFFFillOrder';
|
---|
| 2520 | $tags[0x010E] = 'TIFFImageDescription';
|
---|
| 2521 | $tags[0x010F] = 'TIFFMake';
|
---|
| 2522 | $tags[0x0110] = 'TIFFModel';
|
---|
| 2523 | $tags[0x0111] = 'TIFFStripOffsets';
|
---|
| 2524 | $tags[0x0112] = 'TIFFOrientation';
|
---|
| 2525 | $tags[0x0115] = 'TIFFSamplesPerPixel';
|
---|
| 2526 | $tags[0x0116] = 'TIFFRowsPerStrip';
|
---|
| 2527 | $tags[0x0117] = 'TIFFStripByteCounts';
|
---|
| 2528 | $tags[0x0118] = 'TIFFMinSampleValue';
|
---|
| 2529 | $tags[0x0119] = 'TIFFMaxSampleValue';
|
---|
| 2530 | $tags[0x011A] = 'TIFFXResolution';
|
---|
| 2531 | $tags[0x011B] = 'TIFFYResolution';
|
---|
| 2532 | $tags[0x011C] = 'TIFFPlanarConfiguration';
|
---|
| 2533 | $tags[0x0122] = 'TIFFGrayResponseUnit';
|
---|
| 2534 | $tags[0x0123] = 'TIFFGrayResponseCurve';
|
---|
| 2535 | $tags[0x0128] = 'TIFFResolutionUnit';
|
---|
| 2536 | $tags[0x0131] = 'TIFFSoftware';
|
---|
| 2537 | $tags[0x0132] = 'TIFFDateTime';
|
---|
| 2538 | $tags[0x013B] = 'TIFFArtist';
|
---|
| 2539 | $tags[0x013C] = 'TIFFHostComputer';
|
---|
| 2540 | $tags[0x0140] = 'TIFFColorMap';
|
---|
| 2541 | $tags[0x0152] = 'TIFFExtraSamples';
|
---|
| 2542 | $tags[0x0201] = 'TIFFJFIFOffset';
|
---|
| 2543 | $tags[0x0202] = 'TIFFJFIFLength';
|
---|
| 2544 | $tags[0x0211] = 'TIFFYCbCrCoefficients';
|
---|
| 2545 | $tags[0x0212] = 'TIFFYCbCrSubSampling';
|
---|
| 2546 | $tags[0x0213] = 'TIFFYCbCrPositioning';
|
---|
| 2547 | $tags[0x0214] = 'TIFFReferenceBlackWhite';
|
---|
| 2548 | $tags[0x8298] = 'TIFFCopyright';
|
---|
| 2549 | $tags[0x9286] = 'TIFFUserComment';
|
---|
| 2550 | } elseif ($mode == 'exif') {
|
---|
| 2551 | $tags[0x829A] = 'ExposureTime';
|
---|
| 2552 | $tags[0x829D] = 'FNumber';
|
---|
| 2553 | $tags[0x8822] = 'ExposureProgram';
|
---|
| 2554 | $tags[0x8824] = 'SpectralSensitivity';
|
---|
| 2555 | $tags[0x8827] = 'ISOSpeedRatings';
|
---|
| 2556 | $tags[0x8828] = 'OECF';
|
---|
| 2557 | $tags[0x9000] = 'EXIFVersion';
|
---|
| 2558 | $tags[0x9003] = 'DatetimeOriginal';
|
---|
| 2559 | $tags[0x9004] = 'DatetimeDigitized';
|
---|
| 2560 | $tags[0x9101] = 'ComponentsConfiguration';
|
---|
| 2561 | $tags[0x9102] = 'CompressedBitsPerPixel';
|
---|
| 2562 | $tags[0x9201] = 'ShutterSpeedValue';
|
---|
| 2563 | $tags[0x9202] = 'ApertureValue';
|
---|
| 2564 | $tags[0x9203] = 'BrightnessValue';
|
---|
| 2565 | $tags[0x9204] = 'ExposureBiasValue';
|
---|
| 2566 | $tags[0x9205] = 'MaxApertureValue';
|
---|
| 2567 | $tags[0x9206] = 'SubjectDistance';
|
---|
| 2568 | $tags[0x9207] = 'MeteringMode';
|
---|
| 2569 | $tags[0x9208] = 'LightSource';
|
---|
| 2570 | $tags[0x9209] = 'Flash';
|
---|
| 2571 | $tags[0x920A] = 'FocalLength';
|
---|
| 2572 | $tags[0x927C] = 'MakerNote';
|
---|
| 2573 | $tags[0x9286] = 'UserComment';
|
---|
| 2574 | $tags[0x9290] = 'SubSecTime';
|
---|
| 2575 | $tags[0x9291] = 'SubSecTimeOriginal';
|
---|
| 2576 | $tags[0x9292] = 'SubSecTimeDigitized';
|
---|
| 2577 | $tags[0xA000] = 'FlashPixVersion';
|
---|
| 2578 | $tags[0xA001] = 'ColorSpace';
|
---|
| 2579 | $tags[0xA002] = 'PixelXDimension';
|
---|
| 2580 | $tags[0xA003] = 'PixelYDimension';
|
---|
| 2581 | $tags[0xA004] = 'RelatedSoundFile';
|
---|
| 2582 | $tags[0xA005] = 'InteropIFDOffset';
|
---|
| 2583 | $tags[0xA20B] = 'FlashEnergy';
|
---|
| 2584 | $tags[0xA20C] = 'SpatialFrequencyResponse';
|
---|
| 2585 | $tags[0xA20E] = 'FocalPlaneXResolution';
|
---|
| 2586 | $tags[0xA20F] = 'FocalPlaneYResolution';
|
---|
| 2587 | $tags[0xA210] = 'FocalPlaneResolutionUnit';
|
---|
| 2588 | $tags[0xA214] = 'SubjectLocation';
|
---|
| 2589 | $tags[0xA215] = 'ExposureIndex';
|
---|
| 2590 | $tags[0xA217] = 'SensingMethod';
|
---|
| 2591 | $tags[0xA300] = 'FileSource';
|
---|
| 2592 | $tags[0xA301] = 'SceneType';
|
---|
| 2593 | $tags[0xA302] = 'CFAPattern';
|
---|
| 2594 | } elseif ($mode == 'interop') {
|
---|
| 2595 | $tags[0x0001] = 'InteroperabilityIndex';
|
---|
| 2596 | $tags[0x0002] = 'InteroperabilityVersion';
|
---|
| 2597 | $tags[0x1000] = 'RelatedImageFileFormat';
|
---|
| 2598 | $tags[0x1001] = 'RelatedImageWidth';
|
---|
| 2599 | $tags[0x1002] = 'RelatedImageLength';
|
---|
| 2600 | } elseif ($mode == 'gps') {
|
---|
| 2601 | $tags[0x0000] = 'GPSVersionID';
|
---|
| 2602 | $tags[0x0001] = 'GPSLatitudeRef';
|
---|
| 2603 | $tags[0x0002] = 'GPSLatitude';
|
---|
| 2604 | $tags[0x0003] = 'GPSLongitudeRef';
|
---|
| 2605 | $tags[0x0004] = 'GPSLongitude';
|
---|
| 2606 | $tags[0x0005] = 'GPSAltitudeRef';
|
---|
| 2607 | $tags[0x0006] = 'GPSAltitude';
|
---|
| 2608 | $tags[0x0007] = 'GPSTimeStamp';
|
---|
| 2609 | $tags[0x0008] = 'GPSSatellites';
|
---|
| 2610 | $tags[0x0009] = 'GPSStatus';
|
---|
| 2611 | $tags[0x000A] = 'GPSMeasureMode';
|
---|
| 2612 | $tags[0x000B] = 'GPSDOP';
|
---|
| 2613 | $tags[0x000C] = 'GPSSpeedRef';
|
---|
| 2614 | $tags[0x000D] = 'GPSSpeed';
|
---|
| 2615 | $tags[0x000E] = 'GPSTrackRef';
|
---|
| 2616 | $tags[0x000F] = 'GPSTrack';
|
---|
| 2617 | $tags[0x0010] = 'GPSImgDirectionRef';
|
---|
| 2618 | $tags[0x0011] = 'GPSImgDirection';
|
---|
| 2619 | $tags[0x0012] = 'GPSMapDatum';
|
---|
| 2620 | $tags[0x0013] = 'GPSDestLatitudeRef';
|
---|
| 2621 | $tags[0x0014] = 'GPSDestLatitude';
|
---|
| 2622 | $tags[0x0015] = 'GPSDestLongitudeRef';
|
---|
| 2623 | $tags[0x0016] = 'GPSDestLongitude';
|
---|
| 2624 | $tags[0x0017] = 'GPSDestBearingRef';
|
---|
| 2625 | $tags[0x0018] = 'GPSDestBearing';
|
---|
| 2626 | $tags[0x0019] = 'GPSDestDistanceRef';
|
---|
| 2627 | $tags[0x001A] = 'GPSDestDistance';
|
---|
| 2628 | }
|
---|
| 2629 |
|
---|
| 2630 | return $tags;
|
---|
| 2631 | }
|
---|
| 2632 |
|
---|
| 2633 | /*************************************************************/
|
---|
| 2634 | function _exifTagTypes($mode) {
|
---|
| 2635 | $tags = array();
|
---|
| 2636 |
|
---|
| 2637 | if ($mode == 'ifd0') {
|
---|
| 2638 | $tags[0x010E] = array(2, 0); // ImageDescription -> ASCII, Any
|
---|
| 2639 | $tags[0x010F] = array(2, 0); // Make -> ASCII, Any
|
---|
| 2640 | $tags[0x0110] = array(2, 0); // Model -> ASCII, Any
|
---|
| 2641 | $tags[0x0112] = array(3, 1); // Orientation -> SHORT, 1
|
---|
| 2642 | $tags[0x011A] = array(5, 1); // XResolution -> RATIONAL, 1
|
---|
| 2643 | $tags[0x011B] = array(5, 1); // YResolution -> RATIONAL, 1
|
---|
| 2644 | $tags[0x0128] = array(3, 1); // ResolutionUnit -> SHORT
|
---|
| 2645 | $tags[0x0131] = array(2, 0); // Software -> ASCII, Any
|
---|
| 2646 | $tags[0x0132] = array(2, 20); // DateTime -> ASCII, 20
|
---|
| 2647 | $tags[0x013B] = array(2, 0); // Artist -> ASCII, Any
|
---|
| 2648 | $tags[0x013E] = array(5, 2); // WhitePoint -> RATIONAL, 2
|
---|
| 2649 | $tags[0x013F] = array(5, 6); // PrimaryChromaticities -> RATIONAL, 6
|
---|
| 2650 | $tags[0x0211] = array(5, 3); // YCbCrCoefficients -> RATIONAL, 3
|
---|
| 2651 | $tags[0x0212] = array(3, 2); // YCbCrSubSampling -> SHORT, 2
|
---|
| 2652 | $tags[0x0213] = array(3, 1); // YCbCrPositioning -> SHORT, 1
|
---|
| 2653 | $tags[0x0214] = array(5, 6); // ReferenceBlackWhite -> RATIONAL, 6
|
---|
| 2654 | $tags[0x8298] = array(2, 0); // Copyright -> ASCII, Any
|
---|
| 2655 | $tags[0x8769] = array(4, 1); // ExifIFDOffset -> LONG, 1
|
---|
| 2656 | $tags[0x8825] = array(4, 1); // GPSIFDOffset -> LONG, 1
|
---|
| 2657 | }
|
---|
| 2658 | if ($mode == 'ifd1') {
|
---|
| 2659 | $tags[0x00FE] = array(4, 1); // TIFFNewSubfileType -> LONG, 1
|
---|
| 2660 | $tags[0x00FF] = array(3, 1); // TIFFSubfileType -> SHORT, 1
|
---|
| 2661 | $tags[0x0100] = array(4, 1); // TIFFImageWidth -> LONG (or SHORT), 1
|
---|
| 2662 | $tags[0x0101] = array(4, 1); // TIFFImageHeight -> LONG (or SHORT), 1
|
---|
| 2663 | $tags[0x0102] = array(3, 3); // TIFFBitsPerSample -> SHORT, 3
|
---|
| 2664 | $tags[0x0103] = array(3, 1); // TIFFCompression -> SHORT, 1
|
---|
| 2665 | $tags[0x0106] = array(3, 1); // TIFFPhotometricInterpretation -> SHORT, 1
|
---|
| 2666 | $tags[0x0107] = array(3, 1); // TIFFThreshholding -> SHORT, 1
|
---|
| 2667 | $tags[0x0108] = array(3, 1); // TIFFCellWidth -> SHORT, 1
|
---|
| 2668 | $tags[0x0109] = array(3, 1); // TIFFCellLength -> SHORT, 1
|
---|
| 2669 | $tags[0x010A] = array(3, 1); // TIFFFillOrder -> SHORT, 1
|
---|
| 2670 | $tags[0x010E] = array(2, 0); // TIFFImageDescription -> ASCII, Any
|
---|
| 2671 | $tags[0x010F] = array(2, 0); // TIFFMake -> ASCII, Any
|
---|
| 2672 | $tags[0x0110] = array(2, 0); // TIFFModel -> ASCII, Any
|
---|
| 2673 | $tags[0x0111] = array(4, 0); // TIFFStripOffsets -> LONG (or SHORT), Any (one per strip)
|
---|
| 2674 | $tags[0x0112] = array(3, 1); // TIFFOrientation -> SHORT, 1
|
---|
| 2675 | $tags[0x0115] = array(3, 1); // TIFFSamplesPerPixel -> SHORT, 1
|
---|
| 2676 | $tags[0x0116] = array(4, 1); // TIFFRowsPerStrip -> LONG (or SHORT), 1
|
---|
| 2677 | $tags[0x0117] = array(4, 0); // TIFFStripByteCounts -> LONG (or SHORT), Any (one per strip)
|
---|
| 2678 | $tags[0x0118] = array(3, 0); // TIFFMinSampleValue -> SHORT, Any (SamplesPerPixel)
|
---|
| 2679 | $tags[0x0119] = array(3, 0); // TIFFMaxSampleValue -> SHORT, Any (SamplesPerPixel)
|
---|
| 2680 | $tags[0x011A] = array(5, 1); // TIFFXResolution -> RATIONAL, 1
|
---|
| 2681 | $tags[0x011B] = array(5, 1); // TIFFYResolution -> RATIONAL, 1
|
---|
| 2682 | $tags[0x011C] = array(3, 1); // TIFFPlanarConfiguration -> SHORT, 1
|
---|
| 2683 | $tags[0x0122] = array(3, 1); // TIFFGrayResponseUnit -> SHORT, 1
|
---|
| 2684 | $tags[0x0123] = array(3, 0); // TIFFGrayResponseCurve -> SHORT, Any (2^BitsPerSample)
|
---|
| 2685 | $tags[0x0128] = array(3, 1); // TIFFResolutionUnit -> SHORT, 1
|
---|
| 2686 | $tags[0x0131] = array(2, 0); // TIFFSoftware -> ASCII, Any
|
---|
| 2687 | $tags[0x0132] = array(2, 20); // TIFFDateTime -> ASCII, 20
|
---|
| 2688 | $tags[0x013B] = array(2, 0); // TIFFArtist -> ASCII, Any
|
---|
| 2689 | $tags[0x013C] = array(2, 0); // TIFFHostComputer -> ASCII, Any
|
---|
| 2690 | $tags[0x0140] = array(3, 0); // TIFFColorMap -> SHORT, Any (3 * 2^BitsPerSample)
|
---|
| 2691 | $tags[0x0152] = array(3, 0); // TIFFExtraSamples -> SHORT, Any (SamplesPerPixel - 3)
|
---|
| 2692 | $tags[0x0201] = array(4, 1); // TIFFJFIFOffset -> LONG, 1
|
---|
| 2693 | $tags[0x0202] = array(4, 1); // TIFFJFIFLength -> LONG, 1
|
---|
| 2694 | $tags[0x0211] = array(5, 3); // TIFFYCbCrCoefficients -> RATIONAL, 3
|
---|
| 2695 | $tags[0x0212] = array(3, 2); // TIFFYCbCrSubSampling -> SHORT, 2
|
---|
| 2696 | $tags[0x0213] = array(3, 1); // TIFFYCbCrPositioning -> SHORT, 1
|
---|
| 2697 | $tags[0x0214] = array(5, 6); // TIFFReferenceBlackWhite -> RATIONAL, 6
|
---|
| 2698 | $tags[0x8298] = array(2, 0); // TIFFCopyright -> ASCII, Any
|
---|
| 2699 | $tags[0x9286] = array(2, 0); // TIFFUserComment -> ASCII, Any
|
---|
| 2700 | } elseif ($mode == 'exif') {
|
---|
| 2701 | $tags[0x829A] = array(5, 1); // ExposureTime -> RATIONAL, 1
|
---|
| 2702 | $tags[0x829D] = array(5, 1); // FNumber -> RATIONAL, 1
|
---|
| 2703 | $tags[0x8822] = array(3, 1); // ExposureProgram -> SHORT, 1
|
---|
| 2704 | $tags[0x8824] = array(2, 0); // SpectralSensitivity -> ASCII, Any
|
---|
| 2705 | $tags[0x8827] = array(3, 0); // ISOSpeedRatings -> SHORT, Any
|
---|
| 2706 | $tags[0x8828] = array(7, 0); // OECF -> UNDEFINED, Any
|
---|
| 2707 | $tags[0x9000] = array(7, 4); // EXIFVersion -> UNDEFINED, 4
|
---|
| 2708 | $tags[0x9003] = array(2, 20); // DatetimeOriginal -> ASCII, 20
|
---|
| 2709 | $tags[0x9004] = array(2, 20); // DatetimeDigitized -> ASCII, 20
|
---|
| 2710 | $tags[0x9101] = array(7, 4); // ComponentsConfiguration -> UNDEFINED, 4
|
---|
| 2711 | $tags[0x9102] = array(5, 1); // CompressedBitsPerPixel -> RATIONAL, 1
|
---|
| 2712 | $tags[0x9201] = array(10, 1); // ShutterSpeedValue -> SRATIONAL, 1
|
---|
| 2713 | $tags[0x9202] = array(5, 1); // ApertureValue -> RATIONAL, 1
|
---|
| 2714 | $tags[0x9203] = array(10, 1); // BrightnessValue -> SRATIONAL, 1
|
---|
| 2715 | $tags[0x9204] = array(10, 1); // ExposureBiasValue -> SRATIONAL, 1
|
---|
| 2716 | $tags[0x9205] = array(5, 1); // MaxApertureValue -> RATIONAL, 1
|
---|
| 2717 | $tags[0x9206] = array(5, 1); // SubjectDistance -> RATIONAL, 1
|
---|
| 2718 | $tags[0x9207] = array(3, 1); // MeteringMode -> SHORT, 1
|
---|
| 2719 | $tags[0x9208] = array(3, 1); // LightSource -> SHORT, 1
|
---|
| 2720 | $tags[0x9209] = array(3, 1); // Flash -> SHORT, 1
|
---|
| 2721 | $tags[0x920A] = array(5, 1); // FocalLength -> RATIONAL, 1
|
---|
| 2722 | $tags[0x927C] = array(7, 0); // MakerNote -> UNDEFINED, Any
|
---|
| 2723 | $tags[0x9286] = array(7, 0); // UserComment -> UNDEFINED, Any
|
---|
| 2724 | $tags[0x9290] = array(2, 0); // SubSecTime -> ASCII, Any
|
---|
| 2725 | $tags[0x9291] = array(2, 0); // SubSecTimeOriginal -> ASCII, Any
|
---|
| 2726 | $tags[0x9292] = array(2, 0); // SubSecTimeDigitized -> ASCII, Any
|
---|
| 2727 | $tags[0xA000] = array(7, 4); // FlashPixVersion -> UNDEFINED, 4
|
---|
| 2728 | $tags[0xA001] = array(3, 1); // ColorSpace -> SHORT, 1
|
---|
| 2729 | $tags[0xA002] = array(4, 1); // PixelXDimension -> LONG (or SHORT), 1
|
---|
| 2730 | $tags[0xA003] = array(4, 1); // PixelYDimension -> LONG (or SHORT), 1
|
---|
| 2731 | $tags[0xA004] = array(2, 13); // RelatedSoundFile -> ASCII, 13
|
---|
| 2732 | $tags[0xA005] = array(4, 1); // InteropIFDOffset -> LONG, 1
|
---|
| 2733 | $tags[0xA20B] = array(5, 1); // FlashEnergy -> RATIONAL, 1
|
---|
| 2734 | $tags[0xA20C] = array(7, 0); // SpatialFrequencyResponse -> UNDEFINED, Any
|
---|
| 2735 | $tags[0xA20E] = array(5, 1); // FocalPlaneXResolution -> RATIONAL, 1
|
---|
| 2736 | $tags[0xA20F] = array(5, 1); // FocalPlaneYResolution -> RATIONAL, 1
|
---|
| 2737 | $tags[0xA210] = array(3, 1); // FocalPlaneResolutionUnit -> SHORT, 1
|
---|
| 2738 | $tags[0xA214] = array(3, 2); // SubjectLocation -> SHORT, 2
|
---|
| 2739 | $tags[0xA215] = array(5, 1); // ExposureIndex -> RATIONAL, 1
|
---|
| 2740 | $tags[0xA217] = array(3, 1); // SensingMethod -> SHORT, 1
|
---|
| 2741 | $tags[0xA300] = array(7, 1); // FileSource -> UNDEFINED, 1
|
---|
| 2742 | $tags[0xA301] = array(7, 1); // SceneType -> UNDEFINED, 1
|
---|
| 2743 | $tags[0xA302] = array(7, 0); // CFAPattern -> UNDEFINED, Any
|
---|
| 2744 | } elseif ($mode == 'interop') {
|
---|
| 2745 | $tags[0x0001] = array(2, 0); // InteroperabilityIndex -> ASCII, Any
|
---|
| 2746 | $tags[0x0002] = array(7, 4); // InteroperabilityVersion -> UNKNOWN, 4
|
---|
| 2747 | $tags[0x1000] = array(2, 0); // RelatedImageFileFormat -> ASCII, Any
|
---|
| 2748 | $tags[0x1001] = array(4, 1); // RelatedImageWidth -> LONG (or SHORT), 1
|
---|
| 2749 | $tags[0x1002] = array(4, 1); // RelatedImageLength -> LONG (or SHORT), 1
|
---|
| 2750 | } elseif ($mode == 'gps') {
|
---|
| 2751 | $tags[0x0000] = array(1, 4); // GPSVersionID -> BYTE, 4
|
---|
| 2752 | $tags[0x0001] = array(2, 2); // GPSLatitudeRef -> ASCII, 2
|
---|
| 2753 | $tags[0x0002] = array(5, 3); // GPSLatitude -> RATIONAL, 3
|
---|
| 2754 | $tags[0x0003] = array(2, 2); // GPSLongitudeRef -> ASCII, 2
|
---|
| 2755 | $tags[0x0004] = array(5, 3); // GPSLongitude -> RATIONAL, 3
|
---|
| 2756 | $tags[0x0005] = array(2, 2); // GPSAltitudeRef -> ASCII, 2
|
---|
| 2757 | $tags[0x0006] = array(5, 1); // GPSAltitude -> RATIONAL, 1
|
---|
| 2758 | $tags[0x0007] = array(5, 3); // GPSTimeStamp -> RATIONAL, 3
|
---|
| 2759 | $tags[0x0008] = array(2, 0); // GPSSatellites -> ASCII, Any
|
---|
| 2760 | $tags[0x0009] = array(2, 2); // GPSStatus -> ASCII, 2
|
---|
| 2761 | $tags[0x000A] = array(2, 2); // GPSMeasureMode -> ASCII, 2
|
---|
| 2762 | $tags[0x000B] = array(5, 1); // GPSDOP -> RATIONAL, 1
|
---|
| 2763 | $tags[0x000C] = array(2, 2); // GPSSpeedRef -> ASCII, 2
|
---|
| 2764 | $tags[0x000D] = array(5, 1); // GPSSpeed -> RATIONAL, 1
|
---|
| 2765 | $tags[0x000E] = array(2, 2); // GPSTrackRef -> ASCII, 2
|
---|
| 2766 | $tags[0x000F] = array(5, 1); // GPSTrack -> RATIONAL, 1
|
---|
| 2767 | $tags[0x0010] = array(2, 2); // GPSImgDirectionRef -> ASCII, 2
|
---|
| 2768 | $tags[0x0011] = array(5, 1); // GPSImgDirection -> RATIONAL, 1
|
---|
| 2769 | $tags[0x0012] = array(2, 0); // GPSMapDatum -> ASCII, Any
|
---|
| 2770 | $tags[0x0013] = array(2, 2); // GPSDestLatitudeRef -> ASCII, 2
|
---|
| 2771 | $tags[0x0014] = array(5, 3); // GPSDestLatitude -> RATIONAL, 3
|
---|
| 2772 | $tags[0x0015] = array(2, 2); // GPSDestLongitudeRef -> ASCII, 2
|
---|
| 2773 | $tags[0x0016] = array(5, 3); // GPSDestLongitude -> RATIONAL, 3
|
---|
| 2774 | $tags[0x0017] = array(2, 2); // GPSDestBearingRef -> ASCII, 2
|
---|
| 2775 | $tags[0x0018] = array(5, 1); // GPSDestBearing -> RATIONAL, 1
|
---|
| 2776 | $tags[0x0019] = array(2, 2); // GPSDestDistanceRef -> ASCII, 2
|
---|
| 2777 | $tags[0x001A] = array(5, 1); // GPSDestDistance -> RATIONAL, 1
|
---|
| 2778 | }
|
---|
| 2779 |
|
---|
| 2780 | return $tags;
|
---|
| 2781 | }
|
---|
| 2782 |
|
---|
| 2783 | /*************************************************************/
|
---|
| 2784 | function _exifNameTags($mode) {
|
---|
| 2785 | $tags = $this->_exifTagNames($mode);
|
---|
| 2786 | return $this->_names2Tags($tags);
|
---|
| 2787 | }
|
---|
| 2788 |
|
---|
| 2789 | /*************************************************************/
|
---|
| 2790 | function _iptcTagNames() {
|
---|
| 2791 | $tags = array();
|
---|
| 2792 | $tags[0x14] = 'SuplementalCategories';
|
---|
| 2793 | $tags[0x19] = 'Keywords';
|
---|
| 2794 | $tags[0x78] = 'Caption';
|
---|
| 2795 | $tags[0x7A] = 'CaptionWriter';
|
---|
| 2796 | $tags[0x69] = 'Headline';
|
---|
| 2797 | $tags[0x28] = 'SpecialInstructions';
|
---|
| 2798 | $tags[0x0F] = 'Category';
|
---|
| 2799 | $tags[0x50] = 'Byline';
|
---|
| 2800 | $tags[0x55] = 'BylineTitle';
|
---|
| 2801 | $tags[0x6E] = 'Credit';
|
---|
| 2802 | $tags[0x73] = 'Source';
|
---|
| 2803 | $tags[0x74] = 'CopyrightNotice';
|
---|
| 2804 | $tags[0x05] = 'ObjectName';
|
---|
| 2805 | $tags[0x5A] = 'City';
|
---|
| 2806 | $tags[0x5C] = 'Sublocation';
|
---|
| 2807 | $tags[0x5F] = 'ProvinceState';
|
---|
| 2808 | $tags[0x65] = 'CountryName';
|
---|
| 2809 | $tags[0x67] = 'OriginalTransmissionReference';
|
---|
| 2810 | $tags[0x37] = 'DateCreated';
|
---|
| 2811 | $tags[0x0A] = 'CopyrightFlag';
|
---|
| 2812 |
|
---|
| 2813 | return $tags;
|
---|
| 2814 | }
|
---|
| 2815 |
|
---|
| 2816 | /*************************************************************/
|
---|
| 2817 | function & _iptcNameTags() {
|
---|
| 2818 | $tags = $this->_iptcTagNames();
|
---|
| 2819 | return $this->_names2Tags($tags);
|
---|
| 2820 | }
|
---|
| 2821 |
|
---|
| 2822 | /*************************************************************/
|
---|
| 2823 | function _names2Tags($tags2Names) {
|
---|
| 2824 | $names2Tags = array();
|
---|
| 2825 | reset($tags2Names);
|
---|
| 2826 | while (list($tag, $name) = each($tags2Names)) {
|
---|
| 2827 | $names2Tags[$name] = $tag;
|
---|
| 2828 | }
|
---|
| 2829 |
|
---|
| 2830 | return $names2Tags;
|
---|
| 2831 | }
|
---|
| 2832 |
|
---|
| 2833 | /*************************************************************/
|
---|
| 2834 | function _getByte(&$data, $pos) {
|
---|
| 2835 | return ord($data{$pos});
|
---|
| 2836 | }
|
---|
| 2837 |
|
---|
| 2838 | /*************************************************************/
|
---|
| 2839 | function _putByte(&$data, $pos, $val) {
|
---|
| 2840 | $val = intval($val);
|
---|
| 2841 |
|
---|
| 2842 | $data{$pos} = chr($val);
|
---|
| 2843 |
|
---|
| 2844 | return $pos + 1;
|
---|
| 2845 | }
|
---|
| 2846 |
|
---|
| 2847 | /*************************************************************/
|
---|
| 2848 | function _getShort(&$data, $pos, $bigEndian = true) {
|
---|
| 2849 | if ($bigEndian) {
|
---|
| 2850 | return (ord($data{$pos}) << 8)
|
---|
| 2851 | + ord($data{$pos + 1});
|
---|
| 2852 | } else {
|
---|
| 2853 | return ord($data{$pos})
|
---|
| 2854 | + (ord($data{$pos + 1}) << 8);
|
---|
| 2855 | }
|
---|
| 2856 | }
|
---|
| 2857 |
|
---|
| 2858 | /*************************************************************/
|
---|
| 2859 | function _putShort(&$data, $pos = 0, $val = 0, $bigEndian = true) {
|
---|
| 2860 | $val = intval($val);
|
---|
| 2861 |
|
---|
| 2862 | if ($bigEndian) {
|
---|
| 2863 | $data{$pos + 0} = chr(($val & 0x0000FF00) >> 8);
|
---|
| 2864 | $data{$pos + 1} = chr(($val & 0x000000FF) >> 0);
|
---|
| 2865 | } else {
|
---|
| 2866 | $data{$pos + 0} = chr(($val & 0x00FF) >> 0);
|
---|
| 2867 | $data{$pos + 1} = chr(($val & 0xFF00) >> 8);
|
---|
| 2868 | }
|
---|
| 2869 |
|
---|
| 2870 | return $pos + 2;
|
---|
| 2871 | }
|
---|
| 2872 |
|
---|
| 2873 | /*************************************************************/
|
---|
| 2874 | function _getLong(&$data, $pos, $bigEndian = true) {
|
---|
| 2875 | if ($bigEndian) {
|
---|
| 2876 | return (ord($data{$pos}) << 24)
|
---|
| 2877 | + (ord($data{$pos + 1}) << 16)
|
---|
| 2878 | + (ord($data{$pos + 2}) << 8)
|
---|
| 2879 | + ord($data{$pos + 3});
|
---|
| 2880 | } else {
|
---|
| 2881 | return ord($data{$pos})
|
---|
| 2882 | + (ord($data{$pos + 1}) << 8)
|
---|
| 2883 | + (ord($data{$pos + 2}) << 16)
|
---|
| 2884 | + (ord($data{$pos + 3}) << 24);
|
---|
| 2885 | }
|
---|
| 2886 | }
|
---|
| 2887 |
|
---|
| 2888 | /*************************************************************/
|
---|
| 2889 | function _putLong(&$data, $pos, $val, $bigEndian = true) {
|
---|
| 2890 | $val = intval($val);
|
---|
| 2891 |
|
---|
| 2892 | if ($bigEndian) {
|
---|
| 2893 | $data{$pos + 0} = chr(($val & 0xFF000000) >> 24);
|
---|
| 2894 | $data{$pos + 1} = chr(($val & 0x00FF0000) >> 16);
|
---|
| 2895 | $data{$pos + 2} = chr(($val & 0x0000FF00) >> 8);
|
---|
| 2896 | $data{$pos + 3} = chr(($val & 0x000000FF) >> 0);
|
---|
| 2897 | } else {
|
---|
| 2898 | $data{$pos + 0} = chr(($val & 0x000000FF) >> 0);
|
---|
| 2899 | $data{$pos + 1} = chr(($val & 0x0000FF00) >> 8);
|
---|
| 2900 | $data{$pos + 2} = chr(($val & 0x00FF0000) >> 16);
|
---|
| 2901 | $data{$pos + 3} = chr(($val & 0xFF000000) >> 24);
|
---|
| 2902 | }
|
---|
| 2903 |
|
---|
| 2904 | return $pos + 4;
|
---|
| 2905 | }
|
---|
| 2906 |
|
---|
| 2907 | /*************************************************************/
|
---|
| 2908 | function & _getNullString(&$data, $pos) {
|
---|
| 2909 | $str = '';
|
---|
| 2910 | $max = strlen($data);
|
---|
| 2911 |
|
---|
| 2912 | while ($pos < $max) {
|
---|
| 2913 | if (ord($data{$pos}) == 0) {
|
---|
| 2914 | return $str;
|
---|
| 2915 | } else {
|
---|
| 2916 | $str .= $data{$pos};
|
---|
| 2917 | }
|
---|
| 2918 | $pos++;
|
---|
| 2919 | }
|
---|
| 2920 |
|
---|
| 2921 | return $str;
|
---|
| 2922 | }
|
---|
| 2923 |
|
---|
| 2924 | /*************************************************************/
|
---|
| 2925 | function & _getFixedString(&$data, $pos, $length = -1) {
|
---|
| 2926 | if ($length == -1) {
|
---|
| 2927 | $length = strlen($data) - $pos;
|
---|
| 2928 | }
|
---|
| 2929 |
|
---|
| 2930 | return substr($data, $pos, $length);
|
---|
| 2931 | }
|
---|
| 2932 |
|
---|
| 2933 | /*************************************************************/
|
---|
| 2934 | function _putString(&$data, $pos, &$str) {
|
---|
| 2935 | $len = strlen($str);
|
---|
| 2936 | for ($i = 0; $i < $len; $i++) {
|
---|
| 2937 | $data{$pos + $i} = $str{$i};
|
---|
| 2938 | }
|
---|
| 2939 |
|
---|
| 2940 | return $pos + $len;
|
---|
| 2941 | }
|
---|
| 2942 |
|
---|
| 2943 | /*************************************************************/
|
---|
| 2944 | function _hexDump(&$data, $start = 0, $length = -1) {
|
---|
| 2945 | if (($length == -1) || (($length + $start) > strlen($data))) {
|
---|
| 2946 | $end = strlen($data);
|
---|
| 2947 | } else {
|
---|
| 2948 | $end = $start + $length;
|
---|
| 2949 | }
|
---|
| 2950 |
|
---|
| 2951 | $ascii = '';
|
---|
| 2952 | $count = 0;
|
---|
| 2953 |
|
---|
| 2954 | echo "<tt>\n";
|
---|
| 2955 |
|
---|
| 2956 | while ($start < $end) {
|
---|
| 2957 | if (($count % 16) == 0) {
|
---|
| 2958 | echo sprintf('%04d', $count) . ': ';
|
---|
| 2959 | }
|
---|
| 2960 |
|
---|
| 2961 | $c = ord($data{$start});
|
---|
| 2962 | $count++;
|
---|
| 2963 | $start++;
|
---|
| 2964 |
|
---|
| 2965 | $aux = dechex($c);
|
---|
| 2966 | if (strlen($aux) == 1)
|
---|
| 2967 | echo '0';
|
---|
| 2968 | echo $aux . ' ';
|
---|
| 2969 |
|
---|
| 2970 | if ($c == 60)
|
---|
| 2971 | $ascii .= '<';
|
---|
| 2972 | elseif ($c == 62)
|
---|
| 2973 | $ascii .= '>';
|
---|
| 2974 | elseif ($c == 32)
|
---|
| 2975 | $ascii .= ' ';
|
---|
| 2976 | elseif ($c > 32)
|
---|
| 2977 | $ascii .= chr($c);
|
---|
| 2978 | else
|
---|
| 2979 | $ascii .= '.';
|
---|
| 2980 |
|
---|
| 2981 | if (($count % 4) == 0) {
|
---|
| 2982 | echo ' - ';
|
---|
| 2983 | }
|
---|
| 2984 |
|
---|
| 2985 | if (($count % 16) == 0) {
|
---|
| 2986 | echo ': ' . $ascii . "<br>\n";
|
---|
| 2987 | $ascii = '';
|
---|
| 2988 | }
|
---|
| 2989 | }
|
---|
| 2990 |
|
---|
| 2991 | if ($ascii != '') {
|
---|
| 2992 | while (($count % 16) != 0) {
|
---|
| 2993 | echo '-- ';
|
---|
| 2994 | $count++;
|
---|
| 2995 | if (($count % 4) == 0) {
|
---|
| 2996 | echo ' - ';
|
---|
| 2997 | }
|
---|
| 2998 | }
|
---|
| 2999 | echo ': ' . $ascii . "<br>\n";
|
---|
| 3000 | }
|
---|
| 3001 |
|
---|
| 3002 | echo "</tt>\n";
|
---|
| 3003 | }
|
---|
| 3004 |
|
---|
| 3005 | /*****************************************************************/
|
---|
| 3006 | }
|
---|
| 3007 |
|
---|
| 3008 | /* vim: set expandtab tabstop=4 shiftwidth=4: */
|
---|